Thanks to the HTC 2009 leak (and recent Tweets from the company), we know that the Touch Pro2 is expected on all or most of the biggest US carriers (TMo, AT&T, Verizon and Sprint), with the Diamond2 heading to AT&T. But when?

Well, wmpoweruser is reporting that the Diamond2, in European form (so no US 3G), will land at eXpansys on 17 April. That conflicts a bit with Clove, which expects the Diamond2 to be in stock in mid to late March. But since HTC has publicly stated that the Diamond2 would be out in Q2, we’re going to lean towards an April release. What about the Touch Pro2? HTC is saying “early summer” on that – so expect it around June.

And in the US, if the carriers continue their yearly update cycle that happens before the holidays, we’ll see the new HTC devices land on the aforementioned carriers in the September-October timeframe (with the Touch Pro2 closer to October).

Update: As EmeraldAyotte points out, BGR has the Touch Diamond2 going to Sprint before AT&T in July.