Obviously, any answer that I could give to this question would be purely speculative and undoubtably biased. I am, however, tempted to cite this old adage: If Henry Ford had asked the people what they wanted, they’d have said “a faster horse”.
That said, MPE is already ubiquitous, to the point where many people won’t even consider a soft-synth without it. To which end, most of the reputable soft-synths on the market have now implemented it, as have nearly all of the newer iOS synths.
Then there’s the hardware to consider: i.e. the Seaboard range from Roli has been wildly popular and successful; there is A LOT of hype around synths like the Super6, Hydrasynth, and Argon8; the Touché and its upcoming keyboard successor, the Osmose, have garnered much fanfare around here, etc. Never mind the more niche controllers like the Continnuum, Morph, or (my personal favourite and instrument of choice) the LinnStrument (which, by the way, wouldn’t be “niche” at all if more string players, like myself, were aware of what it could do for them, should they aspire to play synths!). Even polyphonic aftertouch is making a comeback amongst keyboard manufactures, in and effort to compete in the market of expressive control, without otherwise reinventing the wheel.
No, as I said earlier, MPE is the way forward, and I’m confident that it will become the norm. It’s the most exciting thing to happen to controllerism and electronic music in decades. Mark my words, in the not-so-distant future, any sound engine without it will be looked upon as being behind-the-times.
Now (and I promise I’m just jousting in good spirits here), as far as how MPE might be perceived within the EDM community—wherein many aspiring DJs and music producers have never actually played an instrument, and often don’t even understand music at its most basic level—I can see how the merits of MPE might get overlooked or otherwise undervalued. To that end, however, in my opinion, if music is to maintain any relevancy whatsoever to humanity going forward, that really needs to change; else we might as well just drop E and hand the keys to A.I. right now.
But that is an entirely different and far more philosophical conversation…
Cheers!
P.S. Please excuse all the edits. Just trying to make an otherwise long-winded answer as concise as possible. I’m done now.