Don't do it Zat!
But anyway, a lot of people might be trying Aion when it comes out, so something to keep in mind.
Well it's not that there aren't many people into sci fi MMOs (Anarchy Online was popular) it is simply that there aren't many good ones available. And Tabulasa was not a good one. If it had actually been a FPS MMO in the way that Mass Effect was a FPS RPG (Mass Effect would also make a great MMO), it would have performed much better. But the first time you see an enemies' bullet chasing you around a tree, through a hole and down a waterfall you know that the combat system really is no different from any other whackamole MMO despite R.G. saying otherwise. Plus there was the problem with the game looking like crap and the classes not being that appealing with abilities that didn't synch with the game's backstory.
As far as Aion, I was really into it until I learned 2 things.
1) It's being developed by NC Korea instead of NC NA
2) The wing system which was the biggest draw of Aion is nothing but a gimmick. You have exctly one minute of flight time before you fall to your death using a stupid looking animation. No amount of leveling will increase or decrease that one minute.
Also it's the "Stigma" system not stigmata.