idk, whom would be acceptable? is there a "pope" of star trek?
No, no pope. But the control of the canon continuity for the fans of Star Trek have always been the fans, not the writers. They could make new canon, as long as anything in the new canon was consistent with what came before it OR explained any changes to it. There are many examples of this in all of the real Star Trek shows all the way to the end of Enterprise and within all the movies. Even the fan films and projects stick to canon. Abrams broke that continuity, but at least he tried to set his Trek in an alternate timeline. Unfortunately, the universe he created for that alternate timeline broke all of what was already canon even in that alternate timeline. The way Kirk became Captain, the relationship between Uhura and Spock, the Enterprise being built on the ground instead of Space Dock, lots of stuff. Discovery is a complete disconnect from everything Star Trek. This Picard show seems promising, because it may offer explanation for the events which led up to it. Even though the Romulan home planet destruction was not part of original canon Trek (it was part of kelvin Trek), it may be explained and preserve continuity in the Canon universe it was supposed to have taken place in. But mainly, the writes and showrunners do NOT get to dictate canon or erase it or put it into books and games and cartoons like they do in Star Wars.