I'm not at 85 yet. I went through Vashj'r, and to be honest considered the experience very much a mixed bag. Some of it was really gratifying and enjoyable; but to be honest, some of it was so tedious that I found it difficult to remain motivated to keep playing at all.
As mentioned before, I've never been much of a raider, and that is not likely to change with Cataclysm. The two overall objectives I still have in this game, which I've had since BC, are to get a nether drake, and to finish getting the Conqueror PvP title. Another, more minor goal, is to completely finish all of the quests in Nagrand in particular, which was probably my favourite zone in the game. Once I've got those, I'll probably quit.
Anyway, to the point of this post; once I finished Vashj'r, I went back to Shadowmoon Valley to keep doing the Netherwing Ledge rep quests. I became very surprised, however, when I discovered that at level 82, I'm apparently now getting the full amount of XP from said quests, as well as getting 200+ XP per node when mining.
My initial thought was that this was fantastic, because it means that I can get to 85, while still doing purely what I wanted to do anywayz; which I'm assuming was Blizzard's intention. Then, however, I stopped and thought about it a bit more.
One of the things that I've been worried about since probably WoTLK, is that WoW seems to have become a game where the only thing that 90%+ of the playerbase care about doing, is getting to the level cap. For some reason, the prevailing opinion seems to be that the endgame contains the only content worth doing; and that means that for people like me, who actually tend to prefer doing pre-cap stuff, (mainly because I've noticed how much people's attitudes change, for the worse, at the cap) it's much more difficult to find people willing to do pre-cap instances etc, or if they are willing to do them, to see them as anything other than something to be got through as quickly as possible, on their way to the cap.
This may, of course, have the opposite effect, because now that getting Loremaster would apparently assist people in getting to the cap as well, I might actually see more people in the levelling zones. I will mention that I actually did see one other person doing the Skyshatter flying quests at the same time I was; and that gave me cause for optimism. I guess we'll see.