I dreamt toto Wolff was doing an interview at his house or something, discussing the decision to replace bottas with ricciardo. Also that should bottas want another ride in f1 Mercedes would help facilitate it. (Don't judge me on what I dream about, ok?)
Weird dream, but that is my prediction: ricciardo to Mercedes, bottas to somewhere like force India or another Mercedes team, in case he needs to be called back from a sooner than expected retirement from hamilton or something.