Halo Wars 2

ive heard several people mention that they are ‘thinking’ about making a Halo wars 2. I(and many people im sure) am wanting this to happen.

what I want to know though is, what would the storyline be about and how would they improve it?
would they throw in the new vehicles/ toys/ and Lore from the existing games, books, etc.?
what would they keep from the 1st one?

As much as i would love that, I want to see a quote about it from a credible source before i get my hopes up…