That would IMHO be the perfect system. An actual "Plus" to the current FP. However if that is the case why the secrecy? Why would Disney allow a buildup up of such negative sentiment when they could simply alleviate it by confirming more than 3 a day? They could word the FAQ as currently but add "prescheduled" to the "up to 3" and then say "additional day of as availability allows." Also why are so many testers being told they won't be able to use FP-?
For my family I can almost deal with the 3 per day, I won't like it but it's doable. The one park per day is the killer for me. We like to hop, and we like to spontaneously pick the morning or afternoon park depending on ADR's. This system takes that away unless we want to depend on standby or schedule everything.
WDW change = negative comments. Period. Yesterday, I looked back at
DDP rollout, which was announced just before the rollout. Guess what? Plenty of complaints. Now folks post about early DDP as a golden age. 'DDP is confusing, people will abuse it, and rollout is messy,...'
http://www.disboards.com/showthread.php?t=3143286&page=2 , post #30
My guess is that you will preplan 3-4 FP+ per day, but that Disney will offer more on the day, as they see fit. It just seems logical that a big part of the advantage of FP+ is for Disney to relocate guests. At HS, too many folks go to TSM at 9am. With FP+, guests won't. Beyond that, a significant number of folks are now concentrated in that area. Plenty of room to improve flow.
Another way to think about it is to look at SE (Epcot). Often, the worst (only) line is at 9AM. Folks ride the first ride they see. Meanwhile, TGM makes money by telling folks how to evade those patterns. Is that really the best system? Sure TGM isn't going to like FP+, but the average guest experience will improve. Right now, they wait in the TSM logjam, then follow it to Star Tours/RNRC...Old FP doesn't optimize distribution. A small improvement in distribution = more

guests. (Maybe WDW owns TGM?)
I don't think it's a conspiracy. I just needs bodies and computers to see if their distribution algorithms are working.
I think Disney will add hopping eventually to FP+, but right now, it's too complicated. Then again, I don't see why you wouldn't hop. If anything, FP+ makes hopping more attractive. Under current FP, hopping is NOT in our best interest. If we planned to hop from MK to HS at noon, there's a time gap in MK of no collecting FP- plus another big gap of no using FP after hopping.
Now, you can go to MK at RD- ride FP and non-FP attractions till lines get long- hop - start using FP right away.. Later, if you hop again- no FP in your third park, but late in the day you may not need them.
then again....if FP + operates the way I think it will, Disney will know you've hopped, don't have any FP. You will be a prime candidate for pop-up FP+'s.
Then again, If you are hopping to MK around 6pm....you've likely a dinner ADR and plan to see parade/fireworks. In other words, a solid chunk of time that you are NOT going on rides.