[ALL] Life is Strange - Double Exposure theory

This post contains spoilers, so if you have not finished Double Exposure, and potentially some of the other LiS games, please do not read.

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What do we think about the possibility of Safi collecting the characters from the other games - Alex from True Colors and Daniel from LiS2 - and having them all come together with Max in the next game?

I also wonder what power Diamond has, and if she had them all along, or only after the combination of the two universes. Anyone have thoughts on this?