With the price of aroma hops becoming ever more dear, I could certainly see an effective extract alternative becoming feasible. Being willing to try most anything once in my brewery, I did try the original bittering hop extracts and found them to be awkward to work with in a world awash with 15%+AA hops. Bluntly, they answered a problem that I didn't have in my home brewery, but I can see where they'd be useful in production environment.
By contrast, the aroma stuff could be really interesting by solving actual problems: 1) whirlpool and dry hops suck up a lot of very expensive beer; 2) effectively dry hopping in an oxygen free environment is a lot more difficult than simply installing a ball lock port on your fermenter or utilizing the same port on your keg to inject oxygen free extract; 3) Perhaps extract could be used to tame the crop-to-crop differences of the more mercurial varieties? A stable, reliable SIMCOE? Sounds good to me! 4) T-90s, vacuum packed and frozen, are pretty stable, but I'd imagine extract could be even more stable--that would be great for hops that I enjoy but don't use in large quantities. Sorachi Ace extract? I'll have some of that, especially if it can be made to be its old reliable Lemon Pine-Sol self.
I would eagerly try some of the new extracts...but it's been decades since I last saw the back of my freezer, if you know what I mean.