Evwalt, my personal feelings are to keep it simple by just having the 1 list of names; as it suggests at the bottom inclusion is cover for ‘Dropouts’, or, for a ‘New game’.
When some brave soul like yourself feels ready to sound out interest re a New game, they can set up a new thread and folk can apply, then if numbers ain’t met the Reserve list can be raided, sort of, “Oy! Wanna game then Sunbeam!??”
Yer good idea re Hols and cover from the ‘Reserve list’, we’ve had folk taking short breaks in the other games and tended to bite the bullet, suffer withdrawal symptoms, kick next doors cat just that bit more often etc. But your idea sounds Good for longer absences.
All the Best