Part of the reason the first 2 FF movies were considered failures was because they decided to reboot though. That's an indication that they believed what they were doing didn't work. I actually think FOX might at least have been better off perception wise if they simply made a sequal to Rise of the Silver Surfer rather than rebooting and getting what they go here.
A reboot will likely be necessary this time around... but each reboot really is just going to cement the notion that of FOX not being able to do the FF movies right, if they themselves keep going back to the drawing board again and again and again. The fact that a lot of rumors center around FOX re-editing the directors stuff likely isn't going to help that. Because that creates the impression that the problem isn't the director or the cast or the script (those things can change with a reboot) but rather FOX itself.