Additional thoughts. Osprey is a excelent aircraft likely to have a long service life and be used by the USN, USMC and USAF as well as US Allies in any number of roles from Special ops to troop transport, Air tanker, AEW and more however the size of the birds would restrict them from organic use by some ships particularly Frigates and Destroyers of the Zumwalt, Burke and what ever moves in as a successor. and much like the Marines the question will come of a replacement for Knight and Sea-Hawks.
Given the demands placed by the Army for JMR when compared to the existing platforms in the US services, I don't think any of the services could then be able justify develouping or operating a unique platform in the same weight class.
The Army is in my opinion looking to create a true Joint Multirole platform to clean out the Aviation fleets in the 2020s -2040s. If so there hope would be for platforms in the medium weight class so then if we use Valor's pseudo designation V280 there hope is UV280 for the Army, MV280 for SF and maybe the Marines, SV280 ASW for the Navy, HV280 for the USAF and Coast Guard, AV280 for both the Army and Marines.