Looking at the vatious trailers and TV spots it looks like Poe's Black XW gets destroyed and then he's flying around in another XW with an extra booster engine. The question then - is that strapped onto a T65? If so this could open the door to an extra modification to the T-65 in XW Minis.

I don’t mean to be rude, but it would have required less effort than posting here to answer this question

Pretty clear it’s a T-70. I’ll send you a bill

1 hour ago, Lobokai said:

Pretty clear it’s a T-70. I’ll send you a bill

And what if it's a T-85?

Yes, T-85 X-Wing is a thing.

57 minutes ago, Captain Pellaeon said:

And what if it's a T-85?

Yes, T-85 X-Wing is a thing.

Its already been confirmed by the writers to be a resistance modified t-70.