What started out as a very average series has now turned into a massive DC multiverse link-in TV show. CW’s Arrow had a very successful season 1, but it was nothing to really rave about. It was one of those shows that you watch just as a fill-in while you wait for the next episode of Breaking Bad, or Game of Thrones. This has all changed in season 2; Arrow has received some of the best ratings since it’s pilot. This is largely due to CW adding an entire string of superheroes to the casting for Arrow’s season 2. Black Canary, Bronze Tiger, Sebastian Blood, Isabel Rochev, Sin, Amanda Waller and The Flash.
The Flash, played by Glee actor Grant Gustin was supposed to appear first as an introduction to the character in episode 8 and 9, and episode 2o which would serve as his official introduction before we get the spin-off/separate Flash Series. CW decided to change things around a bit. They decided to film a stand-alone Flash pilot as opposed to a link-in episode 20 intro to Arrow’s episode 20. This would allow the creators to better flesh out the superhero’s story and his world on a bigger budget, as pilot budgets are significantly higher than episodic ones.
Either way, it’s good news. We will get a proper Flash pilot, and the cameo appearances in episode 8 and 9 of Arrow is still going to happen.
If you’re not watching Arrow, then now may be a good time to catch on… This is the beginning of a much bigger DC multiverse, similar to what Marvel is doing with its movies and the Marvel Agents of S.H.I.E.L.D. series.
[Flash gets own Pilot as opposed to Arrow Cameo: Source]