IF that does happen, The Stones would probably get a less known person to play. They won't hire anyone that will take the spotlight off of them. Maybe some session player
If anything would happen to Ronnie, god forbid, then the band Rolling Stones would cease to be! Though there would be a replacement band called "The Glimmer Twins featuring Charlie Watts"
If Ronnie left they would definitely carry on. Waddy Watchel, perhaps? Bridges To Babylon seemed like one long audition for him. Any other thoughts as far as replacements go? Maybe Jimmy Rip from Wandering Spirit?