I said yesterday that I had mixed feelings about the leveling curve change - that it shouldn't go too far. The following quote from MadeOfLions, a developer, gives me more hope that it's not simply trying to push players to the level cap, but improve the experience in the lower levels. That's the key - supporting the lower level content.
There is and still will be very, very difficult content in LOTRO. I look forward to seeing how long it takes a Fellowship to complete the Legendary Sentinel's Challenge for 'The Battle of Lorien,' on its way in Book 7, for instance."