Going by what we know thus far, I've been putting reason (based on current ships) to the cost of the base pilots of Wave 7. Here are my thoughts:
YV-666 - 24 - 28
I base my guess on this being a shuttle clone (expecting the same dial or close to it).
Kihraxz Fighter - 21
This was the easiest to reason a base point score for. It's an X-wing for S&V. Cobra (PS 9) even has the same cost as Wedge. Same actions as the X-wing and similar upgrades. (The illicit is the S&V astromech in this case)
K-wing - 22
This is a Y-wing/B-wing hybrid. It has one more shield than a Y-wing but I'm expecting a dial closer to a B-wing. If this ship could naturally move quickly, it wouldn't need the SLAM action. I don't think it will have the red 1 turns (I'm not expecting 1 turns at all for this ship) but I don't think its dial will just consist of a 1 or a 2 straight green either... hence a more B-wing like dial.
Tie Punisher - 16 - 17
This is a Tie Bomber with 3 shields and only 1 evade dice. It will also have a stinted Tie Bomber dial too, to help keep the cost down. It needs to be cheap in order to leave room for the upgrades this ship needs to be effective.
Those are my guesses. How about yours?