I'm sure that the rates of infection in this current "delta" variant will go down as cooler weather arrives, and the Summer "parties" begin to wind down. Finally, more people are seeing the consequences of this virus, and getting vaccinated.
However, there seems to be another strain developing in South America...the "Lamda" variant. It started in Peru, and is spreading through South America, and moving North. If this variation keeps spreading, it may well become a problem here...just in time for the Christmas holidays.
I fully expect to see a need for a booster shot in coming months.