Nothing is confirmed but there is speculation that it should be sometime early this year. Again, LG has not announced or confirmed this.
In all practicality, the V20 *should* get the update but it seems that LG is more concerned nowadays with selling new phones rather than supporting older phones for more than a year. So, we will see.
The V20 performs well just the way it is and I have used some phones with Oreo and really don't see anything that is groundbreaking that will make the V20 any better than it is. I'm happy with the steady flow of security updates (from Verizon) and hope that continues.
David