Thats all well and good Spaz for the USMC and maybe the USN it could be a great asset to have.
However in terms of CVF it's a non starter right now and the surveillance kit is a vaporware solution. If the Vigilance pods ever go anyware (it'll take several years at least imho more that don't fit with the Seaking OSD) it's possible maybe that much further down the line something could happen.
I am willing to bet the MOD (UK) will delay an actual contract for Crowsnest until far too late to actually acheive a timely 2016 replacement for SeaKing AEW then in a blind panic (maybe) the Cerberous kit from Seaking will be hammered into some Merlin airframes as a cheaper solution to acheiving the capability.