Looks like they already have one built in Japan.
http://ohlins.czj.jp/auto/Item/BTO-ZC6_DFV_HAL.html
It will have their Dual Flow Valve technology and a stiffer front vs rear spring rate which likely means it'll be a lot more stable/grippy for track use.
Ohlins TTX and DFV are the best dampers/coilovers in the world, IMO. But in the FR-S case, I may just stick with the stock suspension so I can get the rear to play more. I dunno, maybe if somebody gets them for their BRZ/FRS locally, they can give me a ride in them so I can see if it's worth it.