I wrapped the first take on the Audiobook for Riftsiders: Unlawful Possession and I'm waiting on a release date for the novel from the publisher.
The second Riftsiders book, Identity Theft, is completed and somewhere on my agent's desk for first series edits. It is not impossible that that book gets released in 2022, but the publishing world is slow and the world at large is in constant flux right now, so it's anyone's guess at this point.
There's also at least two other manuscripts I have floating around, but nothing firm on those at this time. There's a very good chance that the third Riftsiders book (tentative: White Collar Crime) will move forward before we see anything else.
Reminder that there's a free short story intro to the world of Riftsiders available right now, if anyone wants to get a head start: Assault & Battery.