So apparently one of the new Pokemon shown in the movie's teaser (the big one, not the small one) has pulsating hexagons all over its body. I don't think you need anymore confirmation that that one's a Zygarde form. Now what about the small one...
Since the small one is bright green, people are speculating it is probably part of Zygarde in order to achieve the new forme. Return of the DNA splicers maybe?
