If it can make its current date, I think it's a decent enough run for PLF as competition is currently scheduled (If VENOM 3 can't make its date, even better to stay where it is). The only other suggestion is if Marvel KEEPS Captain America the last weekend of July, then open August 8th. Rest of August is pretty clear of any significant competition. October may have been viable, but JOKER 2 is all anyone is going to be talking about early October.
If Marvel pushes DEADPOOL 3 to last weekend of July and Captain America back to May (CAPT4 is wrapped, DEAD3 is not), then MISS8 has to avoid DEADPOOL 3 at all costs, don't even consider moving MISS8 to Late July or August.
I think there probably is value in selling MISS8 as the final Ethan Hunt film even if it didn't do the trick for INDI5. So cut the MISS9, MISS10 talk.