about some additions to Dustwallow Marsh and some kind of general speed increase at some point in the future. Drysc has made things a little bit more clear though: we can expect to see a "pre-expansion change to the experience curve and gain." You won't have to wait until the expansion comes out to finish leveling that alt you've always wanted to play but couldn't make time for. Exactly when "pre-expansion" this will be isn't clear of course, but it's nice to know it shouldn't take as long as some had feared.
In addition, Drysc goes on to add that they are interested in "refining (?)" a couple of the old-world instances, namely Gnomeregan and Uldaman, because apparently those dungeons tend to get more people more often during the leveling process. "Refining" those dungeons could mean anything from changing some of the trash mobs to really reorganizing parts of the instance, and the effect could be for better or for worse -- several of my friends tremble with hatred at the mention of those two instances, and would much rather Blizzard removed Gnomeregan and Uldaman altogether than encourage us to go back to an "refined" version anytime soon.
For my part, any refining of old-world content is a good thing. It would be good to speed through content that most of us have already seen before, and it would be refreshing to revisit some old dungeons with new twists for those of us who haven't already done them to death. Some players, however, are crying bloody murder -- apparently ones who enjoy repeatedly slogging through hours and hours of the same old content and think that everyone else should have to also.