Did i read that correctly, does it say expertise affects spell miss?
Yes, expertise will affect spells. That will allow them to even the caps between melee and casters as well as fixing the caps of melee that need the spell hit cap such as enhancement shaman and primarily assassination rogues.
True, but my post on page 4 took care of the expertise change before you posted the link to your blog. =P
So what happens to the White Hit for dual wielders? Also, does the PvP Power apply on PvE mobs as well? For example, if I'm in Tol'Barad doing dailies where I'm bound to run into other players - can I use PvP gear by default for questing as well or will it do less DMG in comparison to PvE gear?
Considering contested PvPvE zones like TB are populated by mobs that die in like 3 hits anyway, I don't see how such a thing matters. If there's a chance you're going to run into some PvP, be in the appropriate gear. If you play on a PvP server this is nothing new by any means.