Leaked page from THE FLASH script- Justice League member cameo?

Now, I'm not too sure if this is reliable or not, but according to Superhero Movie News, this is legit:

This draft was written by Marc Guggenheim (Green Lantern, Arrow) and Michael Green (Green Lantern) in 2011.

What do you guys think?

Could this be legit and most of all, do you think this looked like a good idea to add Hal Jordan in the movie?

Write in the comments below