The pink/purple box issue is solved by changing your view distance in the game to fair. At least that's what my friend told me and it worked for me.
The objects not respawning seems to be fixed now as I was able to continue with my questing last night.
I was told that the female Troll animation issues were still ongoing so I didn't try to mess with mine.
I haven't gotten very far with a Monk so I haven't decided how it feels yet. I started to try a Troll monk but there were no quests available for me in the Troll starting area so I shelved him. My Pandaran Monk is level 5 or 6, I think.
I leveled a Pandaran Hunter through the entire starting experience before the object issue bug came up and found it very linear but fun even with the heavy crowding. The crowds only seemed to really impact only a few quests so hopefully they find ways to get rid of the bottlenecks.
I'm trying to get a feel for the changes in my abilities and reporting some of my impressions on the Beta class forum. For the most part, my class feels about the same while soloing but I suspect the totem changes will bother me more in groups at least until I get used to the new ones and how they feel like a bunch of special long-cooldown abilities instead of my familiar little farm of sticks that I keep around myself.