I doubt this will happen, I'm not even sure it's doable but is there any change we'll get MPE support in the Prophet X? Would love to use a Linnstrument on the violin or wind samples for some authentic sounding articulation.
I'm not sure this is even possibly with the multi sample nature of the PX or if it can only be done when in Sample Stretch mode.
Only Sequential can decide whether or not to support MPE, but there's at least a chance it'd be considered given the recent addition of MPE to the Prophet 6 and OB-6. It's a different problem on the Prophet X, and if it's coming I'd expect it to be bundled with anything else they're thinking about in terms of a significant update.
Sample Stretch mode shouldn't be a strict requirement, as MPE isn't just about pitch control but can be used to send differing modulation amounts for anything in an instrument's mod matrix on a per-note basis. So within whatever limits are already imposed (you can't pitch bend a sample beyond a prescribed range right now, for instance) I would expect the same control
could be offered polyphonically. Only time will tell if it's in the cards!