People have been predicting SWG's demise since day one.
I was in beta and people said the game would die quickly because it was going to release too early.
I was there almost at the start of live and people predicted the game would die quickly because there were too many bugs and there was no balance in anything.
I was there when the CU rolled around and people predicted the game would die because there were too many bugs and no balance in anything and that the CU changed too much.
I was there when the NGE rolled around and people predicted the game would die because there were too many bugs and no balance in anything and that the NGE changed too much.
I still have an active subscription now and still see plenty of activity when I log in (which admittedly isn't very often these days - 5 years is a long time to be playing one game

).
Truthfully the game works better today than it has ever done in its history - certainly it is not the same game it was at launch but that was a grand vision that failed... it was too bland... too hardcore...
If nothing else, SOE has the station subs to help keep the game afloat - plus if the game were bleeding subs and money as some suggest the game would have been dropped long ago. It must at least be paying for itself.
As for the KOTOR mmo... well... judging by Bioware's recent form I would expect the game to be WoW with Jedi and that alone will probably make it the WoW killer if anything is. I see it competing with WoW - not SWG as SWG is its own beast and is still somewhat unique among mmo's.