Well you know how a N/A subie feels like now, but adding more weight you might like to add a turbo. Actually, I was at my subie race tech and they keep suggesting I drop in something similar to Marty's IM 240hp turbo and they can mod the ECU to make it very linear in acceleration like a NA.
As for your time line, IM might be no longer making ICE engines by then, I hope they continue on, for the Canadian market at least, but Carey certainly is moving forward with the coupe and with all that experience and Lane being the guinea pig we have a chance of maybe getting more from Bremman... I mean, with all that work, it must be soon out of the neonatal stage as he has finished with Anand. 