[citation][nom]Zeh[/nom]What if WoW, WoSC and Titan - in fact all Blizzard MMOs had the same subscription? Which means $15 for all those games? Even tho WoW would be ages old by then, $15 for all that would still be quite valuable.[/citation]
I have no doubt NextMMO(Titan) is going to be a "Sims" style of a "portal" world, within which you can show all of your battle.net-account-bound items in your house/spaceship/showcase, and to display your achievements, ect. It's to provide an interconnection between existing, and future Bliz games, with portals to launch any of each game.
OH, and ya can't leave out micro-transactions, of course.
I haven't figured out if it might actually allow players to walk around and interact as their WoW, Diablo, or other characters, all with one another, but I could see it going in that direction.