Ironically I was just reading the behind-the-scenes entries on Memory Alpha for the episode "Defiant" which is one of my favorites. Apparently the subject of Tom Riker was a no-go in the DS9 writers room after that episode. I don't know why, could have made a fantastic prison break episode. But anyway, maybe Tom Riker escaped/was let go at the end of the war and founded Eddington's Raiders as the successor to the Maquis. He might be dead by now or an old man pulling the strings from some hidden base.
I read he was suppose to be apart of the rebellion during the Dominion War but it was pulled at the last minute because the Actor wasn't available at the time.
ATTENTION:UNDINE SPACE & TKON GROUND SETS ALL THE WAY DEVS!.. Q-TRIBBLE, MAYBE!?.. EJECT WARP CORE ABILITY LIKE LAYING A SUPER-MINE, HELL YES!!!.. SPACE HIPPIES FROM TOS PLAYING MUSIC IN OUR FLEET STARBASE, NO, JUST, NO... CAIT & RA'KHOLN ADVENTURE ZONE, YES