Redman wrote:
You could still sit and sing and get mana regen.
You can do that now; that's not the point. The point is, especially with some of the more ME-intensive songs, you can sing them for a few battles, then have to spend ten or more minutes of downtime in sleeping trying to regen ME at unassisted rates.
Meditation would be too powerful given it's ability to fire when not resting, but Trance would fit just fine and solve the only problem that exists for bard regen rates: A boost to mana regen when resting/sleeping.
EDIT: However, as has already been stated in this thread, this has been beaten to death, revived, then beaten to death again, revived, and beaten to death yet again. Likely, it will happen again before too long as well.
If it was going to be changed, it would have been. As I recall, on the last 12+ page thread talking about this, Dulrik once again refused to even comment despite the numerous and well-reasoned arguments in favor or the numerous "ZOMFG IT WAS B OP!!!11" posts.