Well the first fakemon we had planned (although they became glitched by accident) was a trio of Snowman pokemon, named Nevico, Nevacho, and Nevombre. They will most likely be fixed and added in, in addition to a few others. A mewthree may be possible, also we may decide to throw in Missingno. QUOTE]
If your plan to add a mewtree in the game , why not try to create a clone out of celibi ...
2 clones out of mew is enough i think .. right ? :P
And you can give celebi a much larger story then realized
anyway i mewtree can be fine :D