We were at the parks last week and they are now testing putting fast passes on annual passes (and possibly regular ticket cards and/or on site resort room keys). I went to Guest Services to see if we could get a FP for the next day for Indy since 2 days in a row it was down during our return window and we were leaving the park for that day. The CM put 1 FP for each of us (so 3 total) "on my annual pass". So the next day I gave my annual pass to the first CM at the Indy FP return entrance who scanned my AP to see the passes, then the CM who takes the paper tickets where they combine the FP and standby lines also had a scanner to redeem them. From the way the CM's were talking about it it sounded like it was new to them and one of the scanners was not working - so it's probably early in the test. But I did notice a few other times at FP rides I saw CM's with the scanners too. I would assume that is the first phase of getting ready to try out a FP+ system w app, kiosks and all.
It is not magic bands -just FP+.
We were at WDW in Fall 2013 during the FP+/Magic Band test- we loved it although we had the best of both worlds - we had FP+ and also still got to pull paper fast passes too but if I had to choose one vs the other I would have picked FP+ as I liked planning ahead and would get notified on my phone if the ride was down during my FP return window so I could exchange for another FP or get a "good for the rest of the day" FP for that attraction.
Magic Bands were cool too but I agree they make more sense at WDW where there are so many on site guests - we loved using them as room keys and to pay for stuff and it was nice when going to the pool as we didn't need to bring anything with us since we were wearing our room key and wallet on our wrists. The fact that the MB's also held FP+'s was a bonus but it would have been just as easy swiping a ticket card or annual pass (I wear a lanyard for easy access to our AP's) as scanning the magic band.