Change midi channel with expression maps?

I’ve tried the gallery view approach to workaround this, it works OK, but its less than ideal and its basically the same thing I am doing using the DAW. I read on Daniel’s blog where there will be only one more major update to 1.x. There was nothing mentioned about improvements to playback or expression maps. Should I take it that this feature might be part of a Dorico 2.x update sometime next year?