-I can live without quests - not a lore fan, really.
-Legendary continuation will happen. It's one big process through the patches of the expansion
-No, please, no. No more battlegrounds. Either make the current ones better, fix some minor bugs... polishing the current ones, to be precise, would be a better idea than creating a new battleground entirely. We have something that allows us to ignore 2 battlegrounds queueing for random, and we could use a third. Let's not hope for a 4th if that one is bad. Temple of Kotmogu and Silvershard mines are pretty fun, though. Strand could use some polishing.
- Cross-Realm Zones, for instance, could use some hotfixes.
- World PvP areas are good, even on PvE server. There are always some PvP fans out there willing to mount along and get some PvP action.
- We have plenty of arena maps, but we could use 1 or two more.
- I'm sorry, new features would have to wait. There are plenty of features with bugs (can't name on top of my head). We have plenty already.
I would expect a 5.2 to be revamped and polished, rather than including more things that would create more bugs and broken things.