A FF camera with a 7D like (or better) AF is certainly attractive to me. The plastic body is definitely a turn off and could be a deal breaker for me. I'm OK with the 5DII sensor if that is what Canon has to do to keep the price down. Keep the form factor no smaller than the 7D, lose the pop up flash (unless it has radio trigger) and no swivel screen and you've got my attention.+1.
This could be an excellent combo with my 7D.
I want a 5D3 but don't know when or if I can afford/justify the cost.
Oh and it must have AFMA
So practically you need a 5DMkII with updated AF (like the one that exists on 7D). Sounds good to me. As a 5DmkII owner I could not agree more.