Even with new actors in the roles, it would be an utterly ridiculous mish-mash of characters that would cause fanboys in the theater to squeal in delite while everyone else did face-palms.
We had something like it with Kirk and Picard together in GEN, and instead of a truly special and memorable adventure scene using both of them, we had a lot of dialogue between Kirk and Picard in a cabin and on horseback (mostly exposition), a fistfight between Kirk and Soran, and Kirk falling off a bridge to his less than glorious death while Picard was powerless to help. Wow!
We had something like it with Kirk and Picard together in GEN, and instead of a truly special and memorable adventure scene using both of them, we had a lot of dialogue between Kirk and Picard in a cabin and on horseback (mostly exposition), a fistfight between Kirk and Soran, and Kirk falling off a bridge to his less than glorious death while Picard was powerless to help. Wow!