Will DA even sell that well? It's not going to be as dumbed down as TES IV: Special Olympics (I'll never forgive Bethesda for that travesty,) and it has OMG ISOMETRIC VIEW OLD RELIC!!!!1. But Phil Harrison was quoted about a year or two ago stating "we will be returning to these properties but not today." It's possible but we'll just have to wait and see.
I personally interpret that as TOR being set in an "alternate universe" type setting, making it pretty much a spin off from the main series. If that's the case, they could continue with the main series and please the core fans without completely selling out to the WoW children. If not, I hope it fails and the amount of damage it does is considerably large.
As long as the Engine, game and toolset isn't forcibly rushed (diaf Atari), I'll be happy with that as well.
The RTS games were fun, but I could never get into the series any farther then that. But it would undoubtedly be profitable.