Or it's just Mega Greninja. Because we have mega evolution. You're twisting it to totally unrealistic views.I think this is interesting. Though if Ash and Greninja biomerge...we'll have another coincidence of Pokémon introducing new things that are very Digimon.
I think the brain is within the Zygarde we already knew about, it just isn't visible as its brain.Wait, the little larvae green blob thing is just a part of Zygarde then?...and it becomes the brain of the new forms....so the Zygarde that we know doesn't uhm....think?
The difference between the Greninja and this Greninja is not a little difference. This Greninja that we see here has major differences with its face and actually if you look closely you can see he has a sort of blue/white spine/spike on his back. The differences don't need to be extreme as we can see in Mega Ampharos and Kangaskhan. Besides that, with the machine and the one mega evolution guy (don't watch the anime don't know his name) appearing, I say the likelihood is very high.I doubt that it'll ever be a Mega Evolution since the difference is just a bit too small. But on the poster, we know Ash currently has a Frogadier and it doesn't appear. So it might probably evolve into that Greninja.
I know, and I can comment on your hypothesis.Excuse me, I can hypothesize. And as Serebii says the magazine mentions it looks sort of like Ash's clothes <.<
Mega Sableye is just Sableye holding a giant gem, and Mega Kangaskhan is just Kangaskhan with her kid next to her.I doubt that it'll ever be a Mega Evolution since the difference is just a bit too small. But on the poster, we know Ash currently has a Frogadier and it doesn't appear. So it might probably evolve into that Greninja.
It doesn't say that anywhere.So, apparently Greninja has a stronger bond with Ash than Pikachu.