Forever Red does hold some Nostalgia bringing back old rangers. My problem with it is even for Power Rangers it creates a mess. I loved seeing Bulk and Skull but how the hell did Bulk get back from Mirinoi? Perhaps it was Bulk who somehow brought Alpha 6 back in Once a Ranger. It also give powers back to some Red Rangers who should have been powerless but on the other hand how Tommy lost his Zeo Powers before Dinothunder is one my favorite PR fanons. There is a setup for a Power Rnagers was in there happening off screen. I also hate how that waste of skin Cole saved the day. Originally there was supposed to be a big zord battle with many zords from the past from what I've heard but it was scrapped for budgetary and time consuming reason. Lately, Forever Red is my favorite example of what can go wrong when a big fan gets in the writers seat and has a chance to really put his fanfictions into play.