User blog comment:JeloJellyJam/Let's Refurbish The Wiki!/@comment-25029082-20191009140837/@comment-25029082-20191010003539

If the roleplayer themselves aren't interested, you might be able to ask them if you can loan the character to finish the story. More likely than not, they will allow you to use their character to finish the story if you get a response; I highly doubt anyone would end the story abruptly due to lack of interest.

Now, if the RPer becomes inactive, that's a problem. That's why I suggest an inactivity policy so if the user is inactive for too long, their characters might be subject for use by other users.