Habana will be joined by a long list of Southern Hemisphere superstars plying their trade in the tournament for the very first time as 23 teams look to knock Toulon off their perch next May.
As well as featuring all but four of the 45 men who represented the British & Irish Lions on their victorious tour of Australia, the 19th Heineken Cup will play host to the likes of Wallaby wing Drew Mitchell, All Black flyer Hosea Gear and Bok full back Zane Kirchner as they look to enhance their stellar reputations up north.
Super 15 winners Craig Clarke, Romana Graham and Brendon Leonard will be keen to continue their success story from their time with the Chiefs when they turn out for Connacht, Exeter and Zebre respectively, while Bulls and South Africa duo Chiliboy Ralepelle and Jano Vermark will expect European glory alongside Gear at Toulouse.
Montpellier can rival Toulon and Toulouse for the most high-profile additions ahead of their Saturday opener in Treviso after they welcomed a trio of influential imports in All Black back Rene Ranger, Wallaby lock Sitaleki Timani and Springbok centre Wynand Olivier to their ranks as they look to build on last season's quarter-final showing.
Aussie international prop Salesi Ma'afu and Kiwi back Glenn Dixon are set to feature for Northampton at some stage, plus there's South African Don Armand and Samoan James So'oialo who will be keen to make an impact with Exeter and Connacht respectively.
Then there's the likes of New Zealanders Jimmy Cowan and Jimmy Gopperth, players who may not be new to northern hemisphere rugby this season but who have yet to grace the Heineken Cup. Scrum-half Cowan's second season with Gloucester sees him step up from the Amlin Challenge Cup, while fly-half Gopperth finally gets his chance with Leinster after Newcastle failed to qualify for the top tournament during his time in the North East of England.
And what about the returnees? Wallaby flyer Lote Tuqiri is in line to feature for three times Heineken Cup kings Leinster having played for Leicester Tigers in the 2009/10 tournament, while South African forward Juandre Kruger will turn out for Racing Metro after previously playing Heineken Cup rugby - and winning the Amlin Challenge Cup - with Northampton.
Every single one of the above, and the few that we've missed out, will no doubt add an extra international flavour to one of the world's most exciting competitions and we're sure we're not the only ones who can't wait to get started.
Star southern hemisphere signings for the 2013/14 Heineken Cup: here's our top 10
Craig Clarke (Waikato Chiefs to Connacht): the 30-year-old second row captained the Chiefs to Super XV glory in 2012 and 2013. A World Cup winner with New Zealand at U19 and U21 level, Clarke has also represented the Junior All Blacks and made 87 appearances in Super Rugby and a similar number in the ITM Cup.
Hosea Gear (Highlanders to Toulouse): with pace to burn, Hosea will be the second member of the Gear family to feature in the Heineken Cup after brother Rico starred for Worcester. The 29-year-old wing won 14 caps for the All Blacks, scoring six tries, with his final appearance coming in the win over Italy in November of last year. Gear has represented the New Zealand Maori since 2004 and finished his Super Rugby career with more than 100 appearances for the Highlanders and Hurricanes to his name.
Romana Graham (Chiefs to Exeter Chiefs): not as widely heralded as his former skipper and fellow second row Clarke but arguably more of a physical presence. A New Zealand Maori representative, 27-year-old Graham missed out on a place in the Chiefs squad for the Super Rugby finals in 2012 and 2013 but was a Ranfurly Shield winner with Waikato last year.
Bryan Habana (Stormers to RC Toulon): one of the most-famous names in the sport, Habana has won almost all there is to win on the southern side of the water. Twice a Currie Cup and Super Rugby winner, Habana has also tasted glory in the Tri Nations and was a World Cup winner in 2007, the same season he was voted the IRB Player of the Year. Lightening quick and with an incredible try-scoring ability, the 30-year-old became the first South African to score more than 50 international tries and is now closing in on a century of Test caps.
Zane Kirchner (Bulls to Leinster): capped close to 30 times by South Africa, Kirchner was his country's starting full back for much of the recent Rugby Championship. A Super XV winner with the Bulls in 2009 and 2010, Kirchner replaces popular Fijian Isa Nacewa and will be hoping to make an equally positive contribution at the RDS.
Brendon Leonard (Chiefs to Zebre): the Kiwi scrum-half may not have moved to one of Europe's most-established outfits but that won't prevent him from leaving a lasting impression. Capped 13 times by the All Blacks between 2007 and 2009, Leonard is already having a huge impact on his new Italian team-mates. His organisational nous and attacking threat were central to Zebre's first competitive win against Cardiff Blues late last month and he will be looking to be equally influential against Saracens, Toulouse and Connacht.
Drew Mitchell (Waratahs to Toulon): a vastly experienced back three star who has proved he is equally comfortable at full back as well as on the wing, Mitchell has long been one of Australia's leading lights. A series of ankle and hamstring injuries may have dogged his career in recent seasons but Mitchell was one of the first names on the Wallaby team sheet when fit. He heads to France with 63 international caps and 30 tries in the bag on the big stage, together with 112 Super Rugby appearances and 175 points for the Tahs, Force and Reds.
Wynand Olivier (Bulls to Montpellier): a former colleague of Kirchner for both club and country, Olivier won three Super Rugby titles and was one of the most consistent performers in Pretoria during his eight years with the Bulls and nine years with Currie Cup side the Blue Bulls. He represented the Springboks on 37 occasions and was a World Cup winner in 2007. His last Test appearance came in 2012.
Rene Ranger (Blues to Montpellier): highly-rated Ranger featured in the last three All Black Test matches prior to his move overseas - ironically when New Zealand faced France during the summer. He was in the reckoning for a spot in his country's Rugby Championship squad but pulled out of contention to tend to his young family prior to his switch to the Top 14. The 26-year-old has six Kiwi caps in total having made his debut against Wales in 2010 and scored a try every two-and-a-half games during his four-year spell with the Blues.
Sitaleki Timani (Waratahs to Montpellier): a hugely-combative but softly-spoken second row, 6ft 8in and 120kg Timani won't shy away from the physical demands of Heineken Cup rugby. Capped 11 times by Australia, the Tongan-born star was tipped to start the summer series with the Lions before breaking his thumb just before the tourists arrived Down Under. He made more than 50 Super Rugby appearances across three different Aussie franchises, with the vast majority coming in a two-year stint with the Tahs.