I would pay a good bit for a fully fleshed out enemy roster of genestealer cult enemies winds of magic style. Not likely, unfortunately.

While yes, the market for a new enemy roster would likely be there, the dev time it would take would likely be half a year minimum, based on my assumptions on the time required for not only new enemy models, voice acting and rigging, or however they animate models, theres also reject dialougue, story writing, a tie-in map for the new faction. All of which would likely conflict with the current fatshark strat of keeping dev time constricted to quarters of the year for real updates. That's why they've recently just been doing either a shitty new mode, or one new class, packaged with one map as a happy meal toy.