I think I cracked the code, ladies and gentlemen!

 

Today this Pokemon was announced called (Get out now if you don't want Sun and Moon spoilers!!!!) Type: Null (http://www.pokemon-sunmoon.com/en-us/pokemon/type-null/), which is a normal type which is said that it was constructed to "synthesize" the strengths of various Pokemon, enabling it to adapt to any situation.

 

Adapt to any situation, is a normal type, and was constructed to synthesize (which also means "combine (a number of things) into a coherent whole), eh? Do you guys see yet?!?!?!? This is where Z-Moves come into play! This thing is basically the Eevee or more likely the Arceus of Z-Moves! Which confirms a leak from earlier that said some Pokemon take on different forms after using a Z-Move! This thing will most likely be able to use any Z-Move and turn into that type that the Z-Move was after the move is used!

 

CASE FREAKING CLOSED!!!!!!

 

But what do you think about my theory, do you agree or disagree? Leave your thoughts below! Also let me know if I missed anything so that can be added to this theory!

We need more info of course but I love the idea that he changes form based on his Z move! Good theory!

Protean does it better

Have to admit that sounds really logical, and would explain the "adapt to any situation" part. But who knows what it'll be in the end, they suprise me over and over again

Well that certainly would explain the name Type: Null. MandJTVPokevids has an interesting theory as well. You should head to his channel and check it out.