The Profoto people will be adding another controller to their system in mid-September.
It will be the Air Remote TTL-N for the Profoto B1. This means the Profoto B1 will be able to do TTL with both Nikon and Canon cameras. Right now you can do this with the Air Remote TTL-C for the Canon system.
It's not only for the B1 - the literature states that it will also synch and control any Profoto unit that is compatible with Air. There will be long operating range - 300 mtrs.
Nikon shooters will want to try this one out as soon as they can. Mid-September.