I always felt that SFAM was given a bad rep, and if it wasn't part of the six flags chain and was an independant park then people would probably like it more. If a new company took it over then it could get a new lease of life, but given they're selling the land to be "marketed for redevelopment" it doesn't seem like that will be likely, and anyway, why would they want to give another company a park to compete with KD.
The park will probably be gutted. I get the feeling we're going to see a whole load of "new" rides at other six flags parks when all these are relocated. The biggest loss may well be Wild one, which is over 100 years old, although it was relocated once before, I highly doubt that will be the case again. Roar will almost certainly be scrapped and parts sent to other parks.
Jokers jinx and ragin cajun will probably be relocated, although its possible they will use JJ for spare parts for the other premiere launch coasters in their chain. I'm not sure what the fate of the intamin will be, as it would be a huge project to relocate it, and in all honest it's probably the worst intamin hyper. I wouldn't be averse to the new trains it just got going to SFNE though.
As the oldest B&M, Firehawk could well be headed for the scrapheap, but maybe it could end up at another park or be sold somewhere.
The SLC might struggle to find a new home, as there arent really that many six flags parks that don't already have an invert. Great escape maybe? They may well sell it to another park.
As for the flying dutchman, it's possible it could have a future elsewhere. there's bound to be plenty of spare parts knocking around from the other 2 that got scrapped and it's a pretty unique coaster that could easily be marketed to a new area. There arent a whole lot of flying coasters around after all.