1: regarding content for everyone: with this in mind the MMO company should NOT forget their primary market. this actually corrasponds to a subscriber being worth more then a possiable one. if the VAST majority of your game are casual players who like to group up in Pugs and run a dungeon etc, don't spend all your design time pumping out insanely hard, hard core raiding material. by all means put some in, but if the majority of your content over the last few years isn't being used by the majority of your player base, you're screwing up.
2: regarding your "everyone should listen to me I was right" comment. really that makes you just come off as arrogant and hurts your arguement over all.
truthfully I think the biggest lesson we can take from SWG is that no matter how strong your IP is, you can't sell a game based on that alone
Most importantly, we can learn that as long as no one releases a bigger, prettier, better hyped Star Trek MMO, we'll probably last a while despite our flaws.
indeed, I don't think it's a concidance SWG is shutting down proably close to when TOR releases. one way or another TOR was the likely death of SWG as suddenly one of the few things that made SWG stand out in the crowd of ageing and fadeing MMOs was the lisence.