This is not UO though. It's a different game and any UO ex or current must understand this. Jumping into a game and expecting it to be like UO or any other game they had enjoyed just doesn't work and sets that person up for a major disapointment.
RG created UO and he understands what players are looking for. He also is focusing more on the mobile market so we should expect things wont be like UO in the sens of game features, playing and all. As I have seen comments already on other threads and sites talking about instanced part of SOTA I am compelled to take a stab at it as an example.
GW1 has an instance. Yes, in cities you can mingle with all the players but once you step out into the world unless you are with your party of friends you are going solo with NPC hereos. I figure he will have a system close to that but that is a total guess. Some people were comparing it to Diablo III instances.
SOTA looks promising and I truly believe many current UO players, ex UO players, and Ultima fans will enjoy the game as long as they understand it's not going to be UO or UO2.