Ken has said that there's going to be an Adventure Scale game, but I can't image that will happen if SS:T tanks.

Since movement and everything will be the same, the app is valuable to you if you're going to try Adventure Scale, but not squadron scale. If the vector plotting stretch goal is met, it'll be a big plus. If not, well, people will live without it.

Personally, I'm just going to try designing some Adventure Scale ships. The ship design spreadsheet if free when you register your copy of the game, so I'm just going to, say, make a Kinunir as if it's the size of an Atlantic-class heavy cruiser, and go from there. That should fit in even the Type S with fairly good detail.