Modelers and profilers are the new fancy thing, but there'll still be those who use traditional amps and cabs. That part is not going to change.
I see modelers as a good convenience for a touring musician that doesn't have a horde of roadies to carry all their shit for them. I also see them as a way for us amateurs to experience out of reach vintage amps and preserve those tones for future musicians as those vintage amps become non functional.
On the reverse side the modelers have their disadvantages too. Depending on what you use; kemper vs axefx, you either only get a snapshot of settings with limited adjustability or a deep rabbit hole of setting. Then if you're like me all the different options available to choose from causes decision paralysis. This is the main reason I've stayed away from modelers. I'd spend more time trying to decide what to use than actually playing.
The other disadvantage I hear a lot about is modelers not having the "amp in the room" sound. You can get a close facsimile of it, but nothing (as of yet) can match the real deal.
I foresee the amp world doing the same thing that happened with music albums. Migrate more to digital then circle back to the traditional. We had records, cassettes, CD's, then digital MP3s and such took over. Now there's been a resurgence of the old analog record player. It's like people all of a sudden realized that digital was lacking a certain rawness that connected them to the music. So they started migrating back to the old technology that gave them what they were missing. I wouldn't be a bit surprised if something like this happened with amps. Digital amps become more prevalent, people feel like it's missing something, discover what they're missing in traditional tube amps, and a resurgence of them going back to tubes.