Agree that it's an awful topic, so I won't go into who might go... just give the facts.
We have 38 on our senior list. It must be trimmed to 35 before the draft. We have Parker and 5 rookies outside this, that don't count in the 35. The rookies are Warren, Crowley (both were effectively elevated to replace Haines who's on the injury list, so will return to the rookie list when Haines returns), Duffield, Krieger and Juniper. Warren will be 24 next year, so too old to be re-rookied. Crowley, having been re-drafted, could remain a rookie next year. Duffield's been on the list for 2 years, so either must be elevated or delisted (and could then be re-drafted by anyone, including Freo, either onto the senior or rookie list). Krieger and Juniper can stay for a 2nd year.
The following players are young enough to delisted, but then rookie listed (if they survive other clubs not poaching them):
Gilmore, Daniel
Dodd, Steven
Peake, Brett
Browne, Andrew
Polak, Graham
Johnson, Michael
Campbell, Adam
Murphy, Ryan
Schammer, Byron
Mundy, David
Dunn, Ryley
Copping, Benet * can't be delisted... 2 year minimum
Stribling, Toby * can't be delisted... 2 year minimum
So, if we want to keep Warren, then 4 must be delisted/traded. If we want to elevate Crowley (as opposed to keep him on the RL and elevate him next year after an injury), then we need to cull 5.
Excluding last years draftees & rookies, these guys are yet to play a game this year.
Browne, Andrew
Campbell, Adam
Haines, Daniel
Hayden, Roger
Peake, Brett