I agree with that FP, and it is for this reason I think the forwards are largely settled. Changes I can see are Madness being picked up, Hooper to run on (Smith if available), Moore to run on, and form to decide Higgers vs Dennis.
Backs much more difficult. You can't really say there are any incumbents other than Genia, AAC (Adam Ashley-Cooper), Diggers. JOC (James O'Connor) is a given; Deans will have him run on, but where? 10, 14, or less likely 12, 13, even 15 though I tend to think AAC (Adam Ashley-Cooper) would be put there instead if it came to it.
There is a long list of possibles to fill in the gaps. I tend to think the core of them will be Tomane, Mogg, CL, Barnes and McCabe.