get more fermentables, extract, and some sugar. double the extact, and add a lb of sugar. Double the hops, or more. This is going to turn into a huuge IIIPA if you get it that big. Heck it's probably like a hopped barleywine that high in proof. I've made a 9.2% IIPA, and a currant 8.0% IIPA, and those are good. If I wanted to go that high, I'd make a barleywine and age the heck out of it.
Edit: I did talk about makeing a IIIPA... so maybe I shuold start planning that, lol