I wonder if we will see the V-4XD ski speeder (i.e. the speeders from Crait in Episode VIII) as a not-too-distant release for the Rebels. They have established that these were leftover tech from the Galactic Civil War, so it would make sense for the OT Rebels to have access to them. In game terms, they would be a heavy unit (or maybe even support unit) that is cheaper/weaker than the T-47 Airspeeder. It would probably only have Speeder 1, and there may be a special rule for the mono-ski (perhaps: can only ignore terrain at height 1 if going in a straight line).
What would you think of the V-4XD in Legion?