No, they won't.

There will be no shortage of "qualified" (simply meaning 1000 TPIC) pilots seeking those top jobs, and those employers will have their pick of employees from that candidate pool. For second & third tier jobs that offer lesser compensation, benefits and QOL...they will be the ones that will face adaptation.

There will be no pilot shortage. What there *may* be is a shortage of pilots willing to work for the compensation & lifestyle offered by regional airlines and bottom-tier LCCs.