Nah, don’t think they are V2 rotors. I bought the set of Mono M4s about 4 1/2 years ago with 203mm floaters on them – same design as these, then bought a 160mm rotor about 2 years back for the above build. I just got the shop to order a floating rotor :-/ I have one of the newer saw toothed rotors on the front wheel, but no way of swapping for compatibility unfortunately…
I think the only problem you’d face is clearance from the rivets – I know my old 203 floaters wouldn’t clear my Formula brakes, ergo I think the old Mono M4s have plenty of clearance.
One plan might be to give Hope a phone tomorrow – I’ve phoned them with compatibility questions in the past and they’ve been very helpful.