I never thought of the Warner Brothers films! You think it will really effect them?
I like the thought of having the emphasis on the bad guys and their origins. Especially because Batman has such a wealth of interesting characters and not many of them are going to be in the films! After all it is going to be much more like the Justice League therefore it won't need just Batman villains!
It'll effect it to a point. WB won't want another Batman running around the place so that will put to rest any giant time skips to bring Bruce Wayne up to early adulthood. That also rules out people like the Joker being, well, the Joker as his storyline runs tandem with Batmans, depending on what origin you believe in.
It'll also stop some other "bad guys" fully realising their full villain potential.
This can be good and bad. It gives characters like The Riddler, The Penguin and some unknown and maybe even new characters a run before the BIG names come in (I'm sorry but as much as The Riddler and The Penguin are personal favourites and two of the biggest villains they also get overshadowed ALL THE TIME by other characters.)
The interesting thing will be whether or not they say **** it to the time lines etc and just bring in villains they know will bring in the crowds. I don't know if it really is a easter egg or not because I haven't looked out for it but apparently there will be one person in every episode that will be "Joker-ish" and could turn out to be the Joker meaning that (if true) they are planning on introducing (and actually HAVE introduced) the Joker to the series. If it isn't true then so be it.
I see a lot that can be done and I think a lot of the disgruntledness that isn't because they dislike the characters (I know a lot of people personally don't like McKenzie much) is that they thought anything set in Gotham will have Batman and Joker pulling the strings. As it is so far they've gone more to the ....
mob side of things. Fish, Falcone and the rise of the Penguin.
And I have to applaud them for it because they could have easily gone for a bang and had Batman, Joker, Two-Face et all running amock and still base it on Gordon but you'd miss out on something special I think.
I'm not sure if they'll get as much as they can out of Gotham as they have Arrow and probably will with The Flash but I personally think it is great.