Alright. I mean on an individual level, I and I'm sure a large majority of people would take a single booster for improved safety from the variants that took this evolutionary path. All for like $20 (cost of a shot).

Might boosters still be required to provide immunity from new escape variants?

No. The variants are variants, not strains. It's based on gene deletes primarily. More Sneaky just means a bit less effective. Studies suggest about half as effective. So from 90% to 80% etc still highly effective.

Most people would pay $20 for improved effectiveness against newer variants, I would presume.

Most people in 1st world countries (where $20 is not that much) would, but I like that it might not be needed. It's less hassle, and it also breaks all the assumptions were made by the anti vaccine misinformation.

Anti-vax, anti-mask crowd have been so wrong so many times over the last year. I doubt another huge L would change their minds. It's twilight zone level stuff.