Since T-Mobile's already gone and said they'll have the new HTC smartphones out in Europe by June, it stands to reason that HTC's confident they'll have the devices ready to rock by then, at least. HTC's made it clear that Diamond2 and Pro2 will be everywhere by the end of 2009, and if you recall Sprint was first to market with US versions of the original Diamond and Pro last year. So on the one hand it stands to reason that the struggling carrier should follow suit this year in being first on the American block with the sequels. Then again, HTC and Sprint engineers have to figure out how to cram CDMA radios into the devices before then, whereas the same GSM models T-Mo Europe is readying should be able to serve T-Mo and AT&T here in the states with a few minor tweaks.
Here's the official T-Mobile press release regarding the MDA Compact V (Touch Diamond2) and MDA Vario V (Touch Pro2) if you're interested. Both devices will be available in Austria, Czech Republic, Germany, Netherlands and UK in June 2009.