This is UW IHME so take it with a grain of salt:

The latest modeling from the IHME indicates that the delta variant could have COVID cases increasing into fall of 2021, before dipping at the end of year.

Source: Delta variant could end up ‘running out of people to infect’ by end of year

But this is, however, how a pandemic generally ends. A brain injured idiot mentioned this long ago.

Coldstreams Skeptic