This is a fairly accurate rosters/40-man + free agents/Rule 5 eligibles
Most of the FA/Rule 5's comes from The Cub Reporter's preseason list, so some players we've picked up might not be on the list.
So far, I don't see many of the minor league FA's and Rule 5 guys we'll bring back or protect.
Obviously, Alcantara is a must protect on the Rule 5. Jae-Hoon Ha is a likely protect IMO. I think we might protect Lendy Castillo as well, and maybe Paniagua if he is declared Rule 5 eligible. I think since Concepcion was put through waivers before, that we don't need to protect him. Peralta, I don't think we need to/want to.
Otherwise, I just don't see many must protects.
Free Agent-wise, some possible re-signings would be:
Kevin Gregg (if the price is right)
The minor league guys, I just don't see us bringing back.