Trust me, I;ve already demanded Rayman 2 long time ago. No response since
Long time? You've been here for a shorter time than I have! Neither of us are in any position to be "demanding" anything. Frankly, I'm not sure anybody is in a position to "demand" them to add particular games, but that's another point entirely. Asking nicely and begging profusely, however...
I was lurking on this site for a year before I actually made an account and bought Baldur's Gate (...and allowed it to snowball into something not unlike an addiction...), a "long time" is relative, but I think you can wait a little longer. Especially now that the first game is here.
...and besides, I liked the original Rayman best anyway. ;)