Removal of Life Tap, or at least making it not necessary so much for Demo would be nice. Just feel like we have to do it way too much, especially if you're taking Demonbolt.
For Destro, just one more on the move option besides Conflag or RoF would be nice.
For Aff, I dunno. Supposedly its DPS is competitive but it just feels clunky as f**k.
Edit: Also snapshotting is not coming back. I'm fine with that, it skewed things way too much. In some ways it showed skill but it created too huge a gap in DPS between those with procs and those without.
And one more escape for PVP. Getting trained by melee these days in PVP is just hell.