maybe, but difficult!
As the AH64 has no current capability and I am not sure if, given the MRH design you could even do it without an extendable probe, and I don't know where that would fit....
CH47 and Merlin have carried out AAR with existing kit, and have been designed with such, it's an already existing capbility which other (not the UK ) have selected for use.
I am sure other customers A400 will do helo AAR, ours will never have the chance to
DM