That is the sad thing about this situation, if immediate improvements are not seen by the Verstappens, they'll turn on their heels and leave, leaving a once extremely successfull team, in a period of panic to rebuild from the demands they have rumoured to have made. The employee's did look very upset by this decision and naturally in F1, some people will follow to other teams. It will be interesting to see how the new dynamic works and personally, I hope Max stays to see it through. Mercedes need to sign George as he's been loyal and really upped his game this year. If they do have to replace a driver, I think Kimi needs perhaps a reserve role for a year or two, or a drive in a team further back to learn the ropes. He is clearly a huge talent, but at times he looks like he is far from ready IMO.
Christian will have a year off and I'm sure by the beginning of next season there will be news on a future appointment for him. There was talk years ago before F1 was sold off, that he would be Bernies successor as head of FOM. I think he is too competitive for that and is far too young for that role. Maybe he will buy Alpine off Renault and start his own team as I have seen suggested. The talk about him going to Aston Martin is doubtful I think, not sure Adrian would like that.