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I think all of those should be updated with enhanced abilities (i.e. cards like Snare and Stocks should still be captures but have something else added). Repentance would be better off not being a "placed" card. Stillness has errata so it definitely needs to be reworked (or printed with its errata ability). Plague of Flies should be remade to be like the other plagues (white/gold/green) IMO.
Maybe we need a list of cards that are worth reprinting but completely overhauling from old sets although you could say that about any old underpowered card really.
Not everything needs to be updated to modern power levels. Some cards are very playable with only one or two abilities. Women as Snares found her way into a lot of my reserves last year, and is my main nomination for Women's. Falling Away is debatable, though without it GoYS makes a lot less sense.
Isn't provisions in prophets? That should stick around IMO.