I think Vettel get Help from Mercedes to place him in Racing point for next 2 years. Once Hamilton and Bottas time over with Mercedes, they may replace with Vettel and Russel. May be it is a plan behind the door. who knows.
or Vettel may waiting for Protest out come before signing.
or vettel still trying to get Albon seat in RB. Max very frustrated in RB, he may look for other options in 2022 if the RB is not capable for wining. If he leaves they don't have experience driver.
all are guesses.... will come to know in coming days.