I envisioned Genie being some of that and some of this:
- A way to list your preferred strategy for your visit. Are you a thrill sort of person (coasters) or did you want front seats at shows, etc? (Hopefully it's granular by Day).
- Touring Plan assistant. Genie builds your itinerary.
- Grant a Wish (FP+ or Meet & Greet).
If the system is replacing FP+, Disney will be careful not to replace free benefits at least right away. While I do think paid experiences may come out of it, I'd be surprised if that's what is initially unveiled.