What comes in 3.0 is what's going to be set in stone, of course as features are concerned - not balance and bugs. I'd like to hear what you - fans - would like to see in 3.0 and who knows.. maybe it will appear in the next release.
Keep it reasonable though. It should be possible-to-do. Also, remember that 3.0 is going to be using Ares, which significantly increases possibilities. Things which weren't possible in 2.0 could be possible in 3.0.