Any plans for an "official" hosting server?

[Graeme Dice]

Will said:
If DomIII could be tweaked to prevent temp file collisions (directory for each savegame perhaps, store temp files there?), then you could have a very large number of games running on a modest box, the only thing to work out is the queuing to throttle simultaneous processing of turns, so each instance isn't starved out of processor and memory resources.

Temporary file collisions were just a bug in Dom2 that happened because the server didn't always pick a different temporary directory than other instances of the server. So I don't really expect it to be a problem in Dom3.