Possible scenarios I see...
1. Six Flags does have interest in some of the attractions, but hasn't solidified where they're moving them to yet and doesn't want to spend money to remove them until that is settled.
2. Six Flags is trying to find buyers who will pay for the removal of the attractions themselves, thus they'll be leaving them up as long as possible. In this situation, it's possible if they don't sell Six Flags might repurpose some later, but they probably don't have any active plans yet.
3. Six Flags has little to no interest in repurposing the attractions (which given that most are older and/or clones wouldn't be overly surprising), thus they're not going to spend any money they don't have to spend on the upkeep of anything left behind.
4. Enchanted Parks is interested in either buying the property or the rides at the property and nothing is being done until that sale concludes.
What I think can be ruled out at this point is anything from SFA becoming a surprise 2026 addition as even relocating a stock flat ride is probably a six month project at minimum.