^ Oh, I know crossovers are popular. Most fans seem to feel that the more costumed heroes in a story, the better. It's just not my personal preference. In general, I prefer something like the classic Superman formula: one superhero and an interesting and colorful, but "ordinary," supporting cast. But again, I recognize that's a minority view.
I don't mind that either. I like crossovers to be occasional, at least the big one. In my opinion, I would like to see special episodes sprinkled throughout the year where we get various people popping up on other shows. One gigantic one.
If you think about it--it makes sense. These people all know each other, and all have villains that the other could help with, so they would work together more often than they do.
Yet they wouldn't be together all the time because they each have things keeping them busy.
I think a multishow arc is just what the Arrowverse needs.
I am curious how this ends. Others have suggested, and I think it does make sense, that Ollie will end up in the Earth 2 Superman role, and end up in a paradise dimension with Felicity.
But here's the problem with that. There was a logic behind what they did with Earth 2 Superman. He was the first hero--and yes, so is Ollie in this universe. However, the writers held a tremendous respect for the character, and didn't want him fading away. They wanted him to have a happy ending and let the audience know he was ok. It was a great idea at the time, ruined 20 years later by the newer writers, but still great at the time.
Yet the new Earth had its own Superman. What they did with Earth 2 Superman wouldn't have worked quite as well if not for that fact.
True, I think the Arrowverse can be ok this way, and Ollie isn't as vital to it as Superman is to DC as a whole, but I don't know if this is the right fate for Ollie.
I wouldn't rubber stamp it.
I'd like to see them do better than simply make certain characters in the Arrowverse take the place of certain characters in COIE.
I don't want to see say, Superman die like Supergirl did in COIE, or Diggle die like Barry did.
The general concept of COIE is terrific, but I think the writers should depart and formulate the story to fit their characters, rather than take the characters and stick them in the story.
Antimonitor can be the villain, and our heroes do what it takes to stop him, and in the end, of course they do, but reality is now altered so that a) there's one Earth and b) they have a clean slate to revamp what needs to be revamped.