at first we will have a clearer look at this pokemon that was rumored sometime ago and well, now is conformed to be an official one:
this was the second image of it's reveal in which it shows multiple of the creature conforming that it isn't a single mon which kinda quite deducts it's chances of being a legendary but we do have the mon called celebi possessing the same pattern of it's sacredness
This isn't the picture of the new blob but it basically was the first one ever revealed and was a chance of being zygarde, the first and second one can be taken as the original dragon, reverting back to unowa's origins but the third image in which the body spots glow conform it to be a form of zygarde, most likely speculated by me to be it's mega. however my other theory is that it is a creature like groudon from Jirachi wish maker movie, especially after the teaser saying the words "is it a pokemon?"
In this reveal image of pokemon merchandise the new pokemon is hidden most probably is that hidden mischievous green blob. interesting things to notice are that all the others are sleeping, and so is zygarde falls into a deep slumber after restoring the balance b/w life and death. this pokemon may be related to cause sleep.
This is basically a clearer fan-design design for a clearer look i put up in the post.
So now i will be putting forth some points on this mon:
. It is clearly related to zygarde considering the hexagon pattern on it's belly, not to forget it's body style also is closer to zygadge (don't wanna say that it is baby zygarde though)
. This pokemon may be related to something that causes sleep or does that itself.
. Many pokemons like raquaza and mewtwo that mega evolves on it's own and then diancie who evolves without a trainer and others who do with mega stones, this pokemon might be zygarde's way of mega evolving.