I'm sure Disney will implement a tiered system for the Pandora attractions and ROL. So it will be an either/or option, assuming there's any availability at all. I'd definitely recommend a dining package to get into ROL. For FP, it's just a matter of getting one of the two rides, and arriving early in the day for the other. I guessing that the Banshee ride will have a smaller capacity, and thus longer wait times.
Good luck.