Mythic dungeons execution is so far awful, we've seen a grand total of one boss so your first point has no bases. The new zone is pretty good from what I've seen, no real complaints apart from needing the shipyard for it which takes so long that the 650 gear it drops is completely unless because you'll already have that on your alts (or is there another entrance to it that I missed without using the feather?). The ring imo sucks, I'd prefer it to be personal as it would give it more flexibility now it just feels like a mini blood lust. Then again even if it was personal it would have the same affect.
Timewalker dungeons sound cool, no complaints here but I hardly consider it a massive step forward. But ya it seems solid.
Over all the patch looks fine but it's to early to really tell. Nothing to get to excited as of yet. Also seeing as one of the zone should have been at launch(and the zone really feels that way when you play it) I can't get to hype about that particular point.
Also why do people think that criticism means we hate blizzard? Shit I love the company but they've made some big mistakes in WoD. The dailies were awful, the dungeons truly great design was wasted with awful tuning and the questing was a real one hit wonder It's got no replay value. The raiding is fine but BRF also suffers from some awful tuning and some fights that really over stay there welcome (2 10 minute + fights...)