He has already been talked back once. I think he was ready to go two years ago. Also, the Rams simply need to look forward and get a solid replacement.
I also think that after a while, it starts becoming a bit of a bad look. I remember when Favre went into wishy washy mode, it sorta became a joke.
If he DOES return one more year, I think he needs to make up his mind VERY soon. That'd be better for both he and the Rams, planning wise.