If RDJ gets too old, what do you want?

Arite, I've thought about this for the while but didn't see it talked about much. I'll get straight to the point, Once RDJ gets pretty/too old or just about has it with playing Iron Man/things between him and Marvel don't work out anymore, would you rather Iron Man get killed off in the MCU or have Iron Man recasted?



I say kill him off.