I asked Cobb about the NA engines including specifically the EZ 36. No plans. And even if they did all USDM EZ36 engines are mated to auto trannys, so if you're thinking manual the stock ecu even with a Cobb AP wouldn't work.
To use a manual tranny you will have to use an aftermarket ECU.

If you go auto tranny you could use the stock ECU + RomRaider + Megashift from Megasquirt. Maybe! The 3.0 with 4EAT can be done. You'd have to use the 4EAT, and no one has tried mating a 4EAT to a 3.6. The consensus is a 5EAT won't work in FWD configuration.

So 3.0 + 4EAT + Stock ECU + Megashiftwill work. As for the 3.6 + 4EAT no one really knows.

The best for a 3.6 would be an aftermarket ECU + 5 speed or 6 speed manual tranny.