I can't wait to test out the priest changes, since they've made the spec "Disc" alot more better for offensive priest pvp by adding Evangelism, combined with archangel an amazing talent. Life grip looks very intresting too, for example in pvp - a hunter goes to trap you, you lifegrip your partner into it, then dispel him thus saving you getting trapped. In pve it looks good if you've got new people in the fight, that are unsure where to stand in the first place, you can grip them to where they're sopoased to be, with new priest spells it's going to increase the skillcap of priests even more and bring more diversity to the class.
Shadow aparition in the shadow tree look really good, working like the ghosts in ICC - deathwhisper maybe, so could be avoidable but still very nice talent.
I'd love to play beta, help out with the bugs etc - seen a few streams where pw:b was clipping and they didn't report it; doubt they made it so you go inside pw;b then go out with the bubble still on you, meh.
The instances so far look really good, should be intresting to see how much of a change it is to heal in these instances, being geared or not, since they have to balance it, but ofcourse its beta so may not be implemented properly yet, if so im up for a challenge :P.
Would be nice to explore Azeroth in its new form, and see how the cities have changed so drastically, after playing wow for years will be nice to see the changes from the air heh.
The new talent trees so far seem good, will be nice to see how they are to play though, with not as many "filler" talents. Was dissapointed that the Lightwell wont act the same way as the one in toc 5, but its beta it could change :P
Engineering looks good too! with the new engineering "gems" should be nice, looking at the haste one and renew scaling with haste :D - heard penance does too now, not sure on that though :D
Overall can't wait to see how the priest class is going to be like, don't get me wrong would like to test other classes too but if i was in beta, would first see the changes on a class that i play all the time, to see the bugs and report them. Then see the changes on other classes that i play, and know.
Anyhow back to farming more gold to be ready for the expansion, thanks for reading this. o/