Geoff Johns said that definitely will NOT happen,cause itd be a nightmare to pull off
It isn't that hard just look at what they have done ALREADY on the CW Berlanti essentially had a mini-crisis first half of last season.
I'm not saying go crazy but IMAGINE a scene in the Fortress of Solitude
the time lines have converged and EVERY Superman from a Christopher Reeve Brandon Roush Tom Welling Dean Caine etc
It would be ICONIC.
Just have the TV and movie worlds collide and all the previous iterations of characters...thats it.
Darkseid Luther Reverse Flash team up...and later Legion of Doom
Darkseid wants to use the Omega Effect and the Speed Force to change reality and need Luthor tech and knowledge to conquer the multiverse.
Reverse Flash was to destroy all versions of Flash...Luthor wants to show the supremacy of the human mind and create a reality without aliens etc.
Damian Darhk has magical forces covered and Vandal Savage of course is playing BOTH sides of the Time War.
Darskeid wants to rule ALL
And of course the turn on each other etc etc.
And you go from Dawn of Justice, Arrow, Flash, Legends, Gotham, Supergirl, Superman 3, etc.
Justice League forms to stop them and introduce the beginning of the Legion of Super Heroes.
boom, boom, boom
Its NOT that hard.