I feel like Progressive Rock/Metal has been in a stand still for the last decade or so, because there's nothing really new or exciting going on. The big names of the genre, whether it's Steven Wilson, Opeth, Pain of Salvation or even Dream Theater are mostly re-treading ground they've either done before themselves, or their favorite bands from the 70s did. The most recent direction I could think of that Prog has gone in is Djent, and say what you want about the genre (I like some and dislike some), it's really not a subgenre with a lot of depth or variety to it. Once you get through Periphery, Tesseract and Animals as Leaders, it becomes clear that Djent is already in a bit of a stand still.
It would be great if we got that one incredible prog rock album that put the genre on the map, for people who aren't necessarily prog fans to begin with. If you look at the big breakthrough albums of recent years, something like Sunbather by Deafheaven, which got non-metalheads digging music with blastbeats and screams, or Death Grips who became a hit with people who weren't necessarily into hip hop/rap (because their music incorporates so much else too), I think Prog needs that one band to reinvent it again for these modern times.
But I also feel like those of us who like prog rock already have no problems with certain bands staying the same or not pushing forward to break new limits. I think the "problems" become more clear if you look at prog with a looking glass from the outside, when it becomes clear that nothing has really happened in a while to shake things up.