DC, Crisis coming?

OK, so news has broken that Arrow/Flash is going to get a spin off series.

Initial rumours were that is was going to be an Arrow/Flash team-up series.  I think this is an unworkable idea.  The schedules for writing/filming a complete series leaves very little time for a second series to be written and filmed.  This is not going to happen.

However, news has come out today that it is going to be more of a spin off series featuring other characters from the show.  The Atom, Canary, Firestorm and Captain Cold are possible characters, along with three previously, unseen on TV, characters from the DC universe.  It is an interesting concept that suggests to me a team show.  I have no idea what team though.

I could be wrong, it could be an anthology series, with an episode for each character alternating throughout the series, with a couple of team up episodes. "DC Nation" maybe?

My biggest issue is this though, why are they having two universes.  Apart from the acronyms DCCU and DCTVU, what is the point.  Having announced Ezra Miller as the cinematic Flash, just before the brand new TV series started, it has been confirmed that these are separate.  At the moment DC is playing catch up with the Marvel cinematic universe (MCU) but I don't think they need to.

For a start the TV series can easily run the "B" level characters.  Arrow, and Flash are going well, as well as Constantine seeming to have finished quite strongly, and Gotham running as a prequel series. With this spin off series and Supergirl in development there is optimism for the future.  Why not keep the "Big Three", Superman, Batman, and Wonder Woman for the big screen, run the others on the small screen, and join them for the Justice League movies. They are developing a universe fairly well.

But this Flash casting, and the announcement that these are separate universes keeps coming back.  I think this is the same DC Universe, and I think the Flash announcement might be the key clue.  I wouldn't be surprised if the Justice League movies are their Crisis.  I think they are going to merge the universes with a Crisis on Infinite Earths/Flashpoint type story.  And I think Ezra Millers' Flash is going to be the sacrifice.

Only time will tell, but it's going to be an interesting journey.