this will not come to pass as described. the combinations allowed by mixing one yeast with multiple hops would mean that you would need a ridiculous number of yeast strains to match the options we have now.
if you have a US05 yeast with a citrus flavor, what do you do if you really want a more piney flavor? noble? tropical? do they'd have to engineer a new strain for each, and then you'd have to culture them all and mix them in the right proportions?
sounds crazy. not saying they cant come up with some winners, but likely to be limited to a dozen or so "archetype" strains and their typical hop combos- west coast+citrusy, NE+fruity, etc.
but one place that this could really be cool is in sours/saisons/etc.