If it is working for you, go for it and renounce your PR.
Quite a few are stuck with employers who wouldn't downgrade. Why will the bottom line driven ones just away give freedom to their employees for nothing in return?
Not to mention, timing also matters. USCIS in a further visa bulletin update might just change to final action date for AOS applications. Haven't you heard of cases of folks missing it by few days and waiting for years?
My guess, a current PD for everyone and slow incremental updates for India in FA dates, will ensure not all of this overflow GCs will go Indians. Some of them will be consumed right away by other countries. There are already a bunch of videos in youtube for this targeting other countries. And the current AOS application allowed based on Filing dates, will generate additional revenue considering the fee increase in October 2020.
Unless and until USCIS publishes a live count of status in various buckets (including duplicate petitions), it will always be a question of timing. This is not rocket science and there is a reason this will never happen.
So roll your dice if you are feeling lucky.
Even if USCIS goes back to FA dates in next bulletin, the current bulletin should be sufficient to give EADs to plenty of people. Lot of companies are allowing downgrading too. FAANG do allow it. Regardless of why this was done, it is going to help a lot of people and regardless of what someone says EAD gives sense of security for someone to permanently live in US.
Also there is very little chance of demand being in high from Rest Of the World countries due variety of factors such as schengen ban, consulate closures, and Pandemic itself. Particularly people from developed countries would show no interest to move this year or next year definitely. US as a country has generated lot of negative perception in Europe for covid cases and deaths, and many might postpone their move at least by one or two years until Pandemic settles down. That should make a strong difference in EB2 and EB3 ROW traditionally gets lot of visas through consular process (philippines, south Korea etc) and T proclamation, consulate closures should stop happening that too..
USCIS already has published the report for number of approved i140s by country, and if they are willing to process the spillover faithfully, current spillover should clear the backlog till 2014 very easily.. there are about 120k i140s till 2014 in both EB2 and EB3 combined for India, if you factor duplicates and dependents, the total backlog comes to 200k. There are 262k GCs flowing in and if you leave aside 60k for EB1, EB4, EB5 and ROW , India should get enough GCs to wipe out the backlog till 2014.
they've signalled their intent to do that by agreeing to honor filing dates. We need to wait and see to what extent they do. Even DOS clearly mentioned that they've moved dates after consulting with USCIS on their processing capacity as they want to avoid any retrogression type situations. They've also said that there's going to be rapid movement in upcoming bulletins.