I could like the idea, but thinking about playing with the average warmane players, makes me want to do something else. After 10 years they still RO at gunship, sorry but we have a serious problem here. Imagine these people attempting to do the phoenix on Tempest Keep. I bet at first wing buffet (or how is called) they RO and everyone quits. Not only there is a lack of knowledge of old and obsolete encounters, but most of all, the thing that I really hate, is that they don't want to improve and learn. I understand that not everyone plays this game since 15 years, but jesus christ, at first wipe everyone starts crying "lets go other bosses" "put normal mode please" and so on.
So yea the idea could be nice, but I would do it only with guildies, I don't trust pug anymore.