Bad trolling aside(Since FE!Roy was never actually replaced, and if anything, it's by Ike, who took his Flare Blade, and general concept and make it into a unique moveset)...
Look, it's blatantly obvious that Mewtwo will not be a completely limited time-offer. It's limited time for the free bit only. For all we know, he could be free DLC later if enough complaints are vocal. Less likely than paid. But it's common sense for Smash. If a character will be available for DLC, it'll be for all time. Smash is completely sold based upon its roster selection. Characters drive the game. That's why some are happy with the clones because they really wanted that character in. Of course gameplay does matter, but far more for the developers than the fans.
Now, can we please just stop with this? There's a 99.999999% chance Mewtwo will be dlc past his original planned "free limit" anyway. You could be right. In fact, people have said this. But it's very beyond likely that it's not worth continuing the topic. A tiny chance of something isn't worth a huge topic over. That's something to ask in the Social thread at best.
the8thark, I'm going to make an honest suggestion to you; You have a lot to say, somewhat mostly rants, but none the less, quite a lot. Smashboards has a blog system, if I remember correctly. You should post your thoughts there. This is only because some of your topics tend to go haywire.