As fare as I know, no euro spec golf will have torsion beam rear susp. Only IRS. But the US spec i don't know.
I can now confirm because i have seen it with my own eyes.
multilink: 2.0 TDI, 1.4 TSI (140hp)
torsion beam: 1.6 TDI, 1.2 TSI (85 + 105 hp)
The US-spec engines will surely not have under 140hp but maybe you'll still get the torsion beam for cost reasons in the entry level models. I'll keep you guys updated when i start seeing US-models.
I believe it will only be available in the GTI format. My suggestion to vw if they are going to give torsion beam for the standard engines (TDI and base gasoline) at least give it to us in the highline option of the car. It may be the incentive enough for some to just get the higher model, me being one of them.
Please, VW you need to give the IRS to TDI models. I wanted a new Jetta TDI but there is no way I would go back to torsion beam. I can see it in the base gas model though, but the TDI should be considered a little more "upscale" due to the increased cost. This is especially important because a TDI is kept a long time so you are then saddled with a stone-age rear end for such a long time, it is a real bummer.
Past cars - 94 T-red Jetta GLX VR6 W.Ed. manual, 05 T-red GTI 1.8T manual
Family - 07 Jetta 2.5S manual, 07 Passat 2.0T Manual, 09 Tiguan S
IRS in US TDI will probably be dependent on US GTD availability:
Here is what the US/NA lineup MIGHT be:
140? hp 2.0L TDI (Torsion Bar)
180? hp 2.0L GTD (IRS)
??? hp 1.8T? Golf (TB) (base at the $16k price point and fully loaded no more than $20k)
217-227 hp 2.0T GTI (IRS)
276? hp 2.0T (K04) Golf R (IRS, AWD) US/NA launch date no sooner than 2015.
Fitting the GTD into the US/NA lineup will be a challenge. The current US-spec TDI is rather upscale and, I believe, will have to be decontented (with appropriate price decrease) to make room for the performance/'luxurious' and more expensive GTD. (GTD needs to be very close in price to GTI - perhaps in the ~$25k range for each)