I know it would bring a ton of players back and probally poach alot of players from current shards. I think it would ultimately depend on the level of support (gm's, events ect) that would determine if it was a success or not.Maybe this batch of devs can revisit creating a pre AoS server. I believe this is a different group that decided against it in the past.
There is a demand for it, for sure. The unmentionable places have better numbers than we have just about any day of the week. It seems to me like there wouldn't be a ton of work involved to maintain such a server once they actually create a pre AoS server. My guess is that a legit pre AoS server could help keep this game afloat with paid subscriptions. Heck, if they made a Siege-like pre AoS server that would be awesome. Ultimately, it was the addition of AoS and everything since that has killed the original success of Siege.
Not trying to bring another game into this thread but Shards (filled with former lead designers of UO) has a wild concept. You have the game itself and official shards. You also have the option to have player run shards through the game. UO would be awesome in this format. Like a particular era create a shard. UO has some incrediblely talented and creative players involved in the game.