That´s alright with me. Yeah he would need to come back, solo films? Who would be mr time travel. Lex?
I thought about that. It went from Martian Manhunter to Supergirl to Wonder Woman. That's a tough one, though the one consistent was a Future-Batman who was spared by Darkseid to live out his life in misery. He's the one who tells the traveler what happened and how to beat Darkseid, and depending on how the story is setup, the one who builds the time travel device. Never thought about Lex, but if you think about it, if it were Lex, it would be kinda similar to the story in DC Universe Online, with it being Darkseid instead of Brainiac.
I'm not a big fan of the time travel idea for the first film, i think they should start it simple. I like the idea of planning a trilogy that leads into a Darkseid invasion, which would also need a New Gods movie before. Problem with time travel is that besides explaining each member of the team and Darkseid, an already almost impossible task, you now also have to introduce timetravel and the way Earth is in the future.
Well I was thinking that time travel allows you to flesh out each member of the team without having an origins movie and all that, it'll also stand as the driver to explain Darkseid. They are all apart of the plot, and the traveler knows where they're at, so it makes it easier to introduce and unite them. The traveler would simply meet up with Superman/Batman/WW first, and each of the 3(or all 3) would be responsible for recruiting the other members, The Flash, Martian Manhunter. I prefer to leave The GL out of this one due to clutter.
It can be kinda similar to MOS, spend the first 20 minutes of the movie in the future. The traveler arrives, explores the wasteland that is now Earth, Batman finds him, explains to him what happened and tells him about his plan with the time travel device(which he only has enough energy to use one time). When Batman is telling him about the deaths of the members, you show the fight scenes and how Darkseid killed them, that'll give us a good idea about each member's power set, as well Darkseid's.
Then the traveler goes back to the past and tells of his travels to Superman and Batman, then they go get Wonder Woman. Then the Trinity set out to recruit The Flash and Martian Manhunter. You can spend a good deal of time on The Flash and MM's story when they are being recruited by the Trinity. And then even more when they are getting acclimated.