I would love to know the answer. I enjoy the ION Plus channel as it has interesting programming and different advertising that can be relevant to our daily lives. I would think Verizon would post something about this situation.
I just saw the following on the Wikipedia page for IonPlus:
"On January 14, 2021, it was announced Ion Plus would cease broadcasting on February 28, 2021 after Ion Media's acquisition by the E.W. Scripps Company."
Really disappointing, but that's media consolidation for you!
BTW, there was a message on your STBs that stated this.