Eh, sorry, I haven't kept up with Nintendo lately. I thought the 2DS was just a reskinned Lite and the 3DS was a different gen.
Regarding the second part, why don't we all like start creating ideas for Megas? Mega Metagross:
Looks sorta like a landstalker from Ratchet: Gladiator (but still with the metagross face), but with beam launchers for things like Hyper Beam and such instead of the cannons
Significantly more speed
Steel/Psychic
Maybe a slight boost of 10 to Attack, Defense, maybe 15 to SpA and SpD, and maybe small health boost too.
Screw balance I just want more Metagross love by Nintendo.