Okay Reddit, can we not bug out this time and let me post?
Kinda surprised I haven't seen more people talking about this, or if they did I just missed it. In the very first teaser (1st image) and first trailer (2nd image) for Mega Dimensions, there's a mega stone that's blue with a green stripe. It doesn't match any of the megas that were added with the DLC, not even ones in base Z-A. The 4th pic is every stone that was shown off in those two trailers, and all of them are accounted for, all except that blue/green one.
by CasualHooligan7