A good many people I've worked with have come to say the future of pharmacy is where we will take on more provider roles, to fully utilize our education, and providers will move more towards focusing on their specialites.
Technicians will be fulfilling more pharmacist roles, Tech Check Tech becoming more prevalent on things like refills, robot fills, restocks, etc. Most of this is with hospital pharmacy vision, but I currently work with at a regional HQ, and this is what we're seeing at command level. Jobs part will indeed work itself out. The age bubble is on a same scale with the pharmacy bubble, so I think some will retire early, a large majority will move out of pharmacy, and then it'll equal itself out. I took think like you, 5-8 years it'll be leveling out, and graduating in 2023, and then hopefully working into a residency will be around prime time.
We'll see though.