That seems unlikely for two reasons. First, the IRS has not announced a procedure. Second, it takes a long time for the IRS to reprogram their computers for annual tax law changes much less a last minute change like this, and then to rerun tax returns that have already been processed. It’s not impossible, but I have not seen anything official.
You haven’t “lost” anything by filing early. The question is not if you will get your money, but how and when. At worst, you would have to file an amended tax return which will probably take around five or six months to be processed, and will result in getting a check in the mail (because the IRS always pays refunds on amended returns by check). For now, I would wait a couple of weeks and see if the IRS makes an official announcement about automatic adjustments.
