"Supergirl" was dumped by CBS: a blessing for its fans. After the Flash appearance on "World's Finest", it was obvious that Kal-El's cousin deserved a better, more appreciative locale. Heck, the crossover's stellar ratings didn't do a thing to impress CBS execs, but CBS' loss is CW's gain, and the line-up is gonna be a wonder to behold, with all these stellar heroes soaring through one connecting stretch.
"Flash" and "Legends" certainly stirred the pot with their parallel-universe/time-travel escapades: the impact of which will undoubtedly influence "Arrow" and "Supergirl", but to what extent is yet to be seen. There's much mystery surrounding what might develop, including of all things, a musical team-up, but the speculation only adds to the excitement.
For example, back-up characters like the Martian Manhunter or Jay Garrick (preferably John Wesley Shipp's version) could dart beyond their evident, fixed bases. I mean, gee whiz, thanks to CW, we're even going to see Superman make visible appearances in the form of Tyler Hoechlin. Wow!!! Let's face it, if "Supergirl" had remained on CBS, Superman would have at best and most remained in the impractical shadows.
Say, wouldn't it be cool if Brandon Routh were to meet the new, television Superman? How 'bout, for that matter, the Atom and Supergirl crossing paths, or perhaps Dean Cain meeting Hoechlin and/or Routh, and well, you get the idea.
This is truly a golden age for superheroic television, and let's not forget all those cool Marvel entries on Netflix, as well as ABC's "Agents of S.H.I.E.L.D."; too bad, though, "Agent Carter" didn't prevail. Big loss there. Nonetheless, CW's staff should be proud of the way it's covering the DC end of it.
Sure, Spielberg might be right when he says that the current superhero craze will go the way of the western (i.e., eventually wear out its welcome), but for now, let's rejoice in what we have. This is one genre that deserved to go big--and I mean, really big--long ago and would have been so in the late '70s (with offshoots for the likes of "The Incredible Hulk", "Spider-man"..."Wonder Woman"), if not for Nielson-rating interference. Better late than never, though, that the bonanza has finally come and with so many fruitful avenues yet to explore.