We will be seeing more roster movement by late Tuesday afternoon. 40 man rosters must be set for the purposes of the Rule 5 draft. Anyone in the organization not on the 40 man is eligible for the Rule 5.
Noteable names that are not on the 40 man and are Rule 5 eligible if not on the 40 man in 48 hours.
David Bote
Owen Caissie
Ben Cowles
Christian Franklin
Darius Hill
Ed Howard
B. J. Murray
Reggie Preciado
Chase Strumpf
40 man is currently at 40, so for every name you take from that list, there's a name on the 40 man you must remove, though we have our fair share of guys who don't have much of a future and we can cut ties with whenever. Caissie and Cowles seem like locks. Might also protect Franklin just to keep another team from nabbing him. I think Strumpf is probably grabbed by a team like the White Sox/A's/Angels/Marlins/Rockies if he's available.
Keep in mind, if you/Jed does not believe someone would play on any of the 30 MLB teams opening day roster, there is no reason to protect them. So Ed Howard hitting .225 in the minors last year and not having any elite traits, he likely is not worth rostering for Rule 5 purposes. No one is drafting him.