well at least one mission is in a brand new enviorment on Phobos, so no, the story missions will not be reskinned content on backwards maps. at least not all of them.
English
-
It's still a crappy story mission that will be played off as 'good' content
-
and you know this how? IMO the missions have progressively gotten better and I doubt that trend will change. it won't be the amazing story Destiny was advertised with, but I think they'll be fun, with a decently interesting plot and OK mechanics.