I finally logged in to the Wrath beta for the first time last night, and frankly, was a little disappointed. Like a lot of players, I really enjoy seeing content live, and playing around on the beta feels like I'm somewhere i'm not supposed to be -- things are not done (it's a little unnerving to see a Blizzard game without impeccable amounts of polish on it), and there's no flow yet from the old world to the new -- you're dropped into Northrend and it's like you've jumped forward a few months in game continuity. Something is missing.
But having been to the strangely buggy future, I can tell you one thing so far. Blizzard will do something they haven't done for almost two years now: every character will very likely get their talent points back around the Wrath of the Lich King release. Sure, it probably seemed obvious to most, but this is a bigger deal than you might think -- free respecs used to be a pretty common occurence, as almost every patch, Blizzard would refund talent points to at least one or two classes. But that was changed right around the last expansion, as Blizzard has opted for smaller class changes rather than content patch revamps. We haven't seen a talent point refund in a long time.
If this release is like last time, we won't necessarily see our talent points refunded upon installation, but rather around a big content patch right beforehand. If you were planning on respeccing for Wrath, you might want to wait a bit -- while respecs still aren't free all the time, we are apparently getting one done for us.