Just an FYI, the stage 2 power pack for the 15-17 mustang came with the larger CAI from the GT350 engine, the larger 87mm throttle body also from the GT350, and a tune from ford racing, required 91 octane or better and only gained 21 hp at the wheels and retails for 8 bills. Aftermarket tuners were pulling 36-37 hp out of the same equipment. Granted gains of about 35-40 is about the most you can expect out of a N/A v8, whereas you can easily get double that out of a boosted engine on a tune alone.
My point is don't expect huge gains out of a ford racing tune, the rumor that it will be the bronco raptor tune at 430 hp sounds about on par for ford racing. The delay is because every tune and performance part/package are all 50 state legal and carb approved. That's good if you live in a state that requires carb approval and you want to remain legal and compliant.
I put the stage 2 pack on my 17 mustang which came with 435 crank hp and they averaged around 380 wheel stock. I also added ford racing sport mufflers, a x-pipe/resonator delete, and long tube catted headers. I took it to local tuner to get the cel turned off from the header install, told him not to change the tune, just turn off the cel so I would pass emissions, Anyway with shell 93 in the tank, on a humid 93 degree day I put down 425 to the tire on a stingy mustang dyno. So with the stage 2 pack, free flowing mufflers, resonator delete and long tube headers, I only gained 45 wheel hp and I spent 4K to get that.