To return some activity to this post, I see 13, 8, 4/5 and 11/14 as the biggest holes we need to plug (essentially, the whole team).
Ignoring WF players:
For 8 hopefully Holloway comes good, but a backup is needed. Wells / Wilkin simply are not big enough, any SS options?
4/5 we've picked up Simmons. Swinton seems to be developing well, but is Conor Vest from Norths an option? I've heard big wraps on him. Or can Sinclair, the Norths 6, play second row? He seems to be tall enough and I think he had a good season for the Rebels. Any other options?
As did Miller at 7. He could be a handy pick up to cover Hooper and reduce his minutes / mental fatigue as the guys barely missed a minute in years.
For 13, could Wileman from the Rats be a solid squad pick up? He seems to be amazingly athletic and from all accounts has really developed over the years. I'd prefer a more mature option like him over a baby faced schoolboy.
For wings I have absolutely no suggestions. Can anyone suggest some?
The NRC will provide more answers but it's good to start asking the questions early.