My guess is that the current restrictions on international travel may be kept in place until the continent has got its third wave under control.
Which could happen before 17th May anyway, as this is two months in the future.
I would imagine that when international travel does open up, proof of vaccination or a recent negative COVID test will be required.
On a more positive note, I see that President Biden has said that all US citizens will be eligible for a COVID vaccination by May 1st, and that he hopes to substantially ease restrictions before the 4th July holiday.
So I might finally be able to visit the US in August this year, around 16 months later than originally planned.