Will hit cap be raised? Yes and no.
No: The of hit required to be capped will likely be the same. It's a mechanic
that works fairly well, and I haven't seen any indication that it will change.
Yes: The amount of hit rating required to get one of hit will be increased. This happens at every single level. All of our stats scale like this.
So to you question, no you will not be hit capped anymore.
In fact as has been pointed out you're not really going to be able to optimize much until level 80, so don't worry about it much. I think wow wiki has some stuff on formula's for scaling stats, they might still be valid in the expansion although there are never any guarantees of that.-you'll always be stupid, you'll just be stupid with more information in your brain.
01001001 00100000 01101100 01101001 01101011 01100101 00100000 01100011 01100001 01101011 01100101Don't worry about WotLK right now. It's still pretty far away and all you're doing is torturing snarf.
The only sure thing about LK is that you will be replacing most of your gear pretty quickly. LK gear will be balanced for LK needs (hopefully).
For now, I recommend you gear and spec for the moment. If you prefer Survival,
then gear to that. Nothing wrong with re-speccing to BM either.
LK is months away. Once you start leveling, keeping gear optimized will be an excersize in chaos. I am just going to wear the best pieces I can lay my hands on, and let optimization wait for level 80 and raiding.