From the National Senior Men’s Tennis Association (NSMTA) Newsletter:

“The NSMTA is pleased to announce that the USTA’s Adult Competition Committee (ACC) recently reversed its prior decision that downgraded National Indoor Championships. In 2023, National Indoor Championships will again be designated Level 1 events. “

This will not affect the ITF status of the indoors as far as I know.

The 2023 Schedule should be out by October 1st per USTA staff.