If this has a level based system its an instant fail.
But strict levels/classes on a system that is supposed to give players design freedom? Probably not a wise restriction, especially not if they want to use their old fan base - which is desperately looking for newer games!
The problem with level based systems is you end up with zone restrictions. There's no reason to explore most of the map because its too low level, items are not useful, etc.
UO worked cos you could go anywhere, at any time, and harder places usually meant you needed a few friends to go with you. You could still do it yourself by pulling and picking off mobs, if they didn't respawn while you were killing stuff that is.
I miss UO...
The creator of Ultima and UO is making a new game called Shrouds of the Avatar.