Re: retro specs for now on?
Hey, I'm pretty sure I get what you're asking so here's my view;
They do appear to be bringing back the Edge, however this is pretty much only for the Reissue models. I wouldn't expect to see it appear on production guitars.
Ibanez has always been about innovation and moving things forward, hence designing things like the Edge Zero and 5pc Necks. The FP2 has the same new 5 piece neck and will continue to do so. Even the UV77RE-MC had the bubinga stripe down the back of the neck which (I don't believe) was on the originals.
As for the quality of the Edge, it's great, very sturdy and natural feeling. As for the buzz, this is dependant on your setup. You can with JEMs get the action pretty low without having too much buzz when you pull the trem right back. I personally find the Lo-Pro better, but that's just my view.
Hope this helps.