In this day and age of an ever shrinking RAF, I'm surprised someone hasn't suggested creating a new Sqn to fill the gap, maybe by resurrecting an old Sqn numberplate....
Perhaps 201 could be given new life as a Sea King SAR Sqn, then we would have 201, 202 and 203 all involved in this field...
Oh yes, I feel that I should point out that I have never been a member of 201 Sqn (thankfully!).