You might see some of these back on PS in a week. An article at the start of camp said some GMs use the first cut for players they want to "sneak" onto PS. No one is looking to claim players this week, with so many cuts to be made between now and the final cutdown. By and large everyone cut now will clear waivers. Then it comes down to where a player WANTS to go.
I wouldn't be surprised to see Hubbard, Blanchard and one of the OTs back.