Random Lurker Post:
I agree that, on previous generations, final evolutions have deferred greatly from the rest of the evolutionary line and deceived all expectations; but never once had a starter lost all of its major trademarks. Chickorita keeps the leaf/buds/flower collar, and, as people have mentioned before, the leaf atop its head doesn't disappear, it merely transforms. Charizard grows wings, but Charmander's trademark trait is the flame on its tail, and the design is overall similar. Samurott still has the conch shells, which are oshawott's trademark, as well Dewott's whiskers. Blaziken keeps Combusken's color scheme, it merely changes patterns, and the biggets change it gets is a thicker layer of feathers; it still strikes some resemblance with its previous evolutions.
Greninja, though, has lost the most major signs of connection with its evolutionary line; the bubbles were clearly a prominent trait on both Froakie and Frogadier, as were the white spots on their nose, not to mention the round-shaped face. It is highly unlikely Frogadier's round face would suddenly transform into an extremely edgy one, which, to be honest, doesn't fit with the roundness of the rest of Greninja's body. It is also highly unlikely they would get rid of the frogs' characteristic "pop-out" eyes in favor of flatter, pointer shapes that reassemble ears more than anything that can be related to frogs.
Who knows, it could actually be real; I'm just throwing my two cents about it.
