I don’t believe things are going to change radically. Marker assisted breeding might be a useful tool, and perhaps some companies will be able to do some pretty amazing things with it.
But what do they even know about what you or I like? Their strains will be flat and 1-sided just like the current legal market. Maybe they’ll make the highest THC strain ever, but who cares? If they made 100% pure synthetic THC, would you stop growing completely? If you could theorize the “perfect” strain, what would it even be? If you found it, would stop growing everything else?
My opinion is that variety and sentimentalism are irreplaceable. Some of the things that bring us the most joy aren’t quantifiable. We still grow the strains of 30, or 50 years ago, not because they’re the most potent 1 hit strains, but for other more personal reasons.