Considering their post-mortem was a lot lamentation about how they announced features such as "Conquest" way too early I'm inclined to agree with you
I agree. I hope Epic learned a lot about the expectations game from their UT3 experience. I just can't shake the feeling that their sky-high claims during development damaged them after release. Sure, the game had it's problems, but it wasn't
that bad, I didn't think. But the issues that were there were egregious enough to make me wonder about how much time they spent pursuing pipe dreams, forcing them to rush in the later stages.
That said, the new content released by Epic has always been pretty game-changing. Think of the ECE for 2k4 as the best example of this. 2k4 without the ECE vehicles just seems strange, now, and I expect something similar for UT3, though I can't think of what might do the trick for UT3, given its low popularity.
I really hope that by "new gametypes" they mean actual new ideas, not retreads of ideas that the community could have done but didn't, chose to do and which received no online support. There's not a single gametype from the older games that we need to see an "official" version of, including my very favorite, Domination.
This is a perfect opportunity for them to field-test new gameplay: a solid base game, an active (if small) community, and a genuine need to redeem a major franchise. I hope Epic takes this chance, and gives us something the world hasn't seen implemented a dozen times before.