I think they should create a new TV series that is set in the prime universe, the first episode will focus on the destruction of Romulus by the Hobus Star and the aftermath. The first episode will spend time on the disappearance of Spock into the blackhole and theorise he may have gone back in time and inadvertently created an alternate timeline in an alternate universe. So basically it is of course canon that Spock has gone back in time and created a new timeline so the movies are real, but it also means the original prime universe continues on in Spocks absence.
We can now have a new series based on the future of the prime universe and the aftermath of Romulus' destruction. The series will also focus on other galactic happenings such as the Cardassians making moves to join the Federation following the Dominion debacle. Also the Klingons choose to use the destruction of Romulus as an excuse to expand their territory causing them to come into new conflict with the Federation.
We can now have a new series based on the future of the prime universe and the aftermath of Romulus' destruction. The series will also focus on other galactic happenings such as the Cardassians making moves to join the Federation following the Dominion debacle. Also the Klingons choose to use the destruction of Romulus as an excuse to expand their territory causing them to come into new conflict with the Federation.