Probably not, or that already would have happened. It hasn't.
One problem is that a lot of people look at equity grants as a meritorious service award. But that's not at all what they are; they're compensation for risk.
Developers look at risk compensation and say, "well, I undertook a lot of risk to work long hours for a lower wage". That's true, but the market prices that kind of risk, and the market cares a lot about substitutes, and the typical developer taking basis points for their participation is eminently replaceable by other developers.
On the other hand, the market has no replacement for an entity legally authorized to trade $1MM for X% of the company, so that risk is priced highly. Similarly, the market has fewer substitutes for the people who actually start the company; or rather, those substitutes tend to react to the mispricing by simply starting their own companies, and thus aren't competing with the founders for equity.
Pithier:
* there's a lot of ground to be made up in how founders/operators promote startup jobs to developers!
* there's probably some marginal ground to be made up for developer equity compensation
* it probably won't dramatically alter the way startup cap tables look
* developers who genuinely (in a market sense) are poorly served by how startups allocate equity should start their own companies
* developers who can't start companies probably aren't being as screwed as we think they are by small grants --- or, if they are, they're being screwed by being persuaded to work at startups when they should instead work for larger companies that can pay them better wages.