Okay, so I haven't looked it up or watched any videos yet (busy), but shofu and giancarlop have both made a video regarding it, so I think I'll let the video speak for me. Serebii also has pictures of the scans.
Looks like there's a new greninja form, and two new zygarde forms. One is a dog???
EDITS: The hyper overtakes me sometimes. Idk about a new game confirmed just yet, but looks like pokemon hype train might start moving again soon!