After the fuel has cooled for 5 years or so in the pool, it can be moved to dry cask storage. See link from NRC here.
It appears Palisades already has some dry fuel casks positioned at the north-east portion of the plant.
My biggest concern would be the condition of the steam generators. They needed to be properly laid-up with all of the water removed and with preferably an inert atmosphere like nitrogen. Steam generators in a PWR this old can be a problem.
Holtec does appear to be serious about restarting this plant. They recently announced replacement of two large heat exchangers. The following article doesn’t say exactly what these heat exchangers are, but from the description and the picture, it looks to me like these are the service water (also called component cooling water) heat exchangers.
_ Pete