The UW IHME random number generator projects up to 1 million new cases on January 10th.
MIT has their own forecast:
Total active coronavirus cases in the U.S. are projected to reach over 3.9 million by January 10, according to forecasts from researchers at the Massachusetts Institute of Technology.
Source: COVID Could Infect Over a Million Americans Per Day by Early January
The UW IHME model projects universal mask wearing will lower the death count by 1.3% as of December 31st.