Injustice Story Trailer -New character(s)?

http://uk.ign.com/videos/2013/01/30/injustice-gods-among-us-story-trailer

The story trailer for Injustice: Gods Among Us has just been released, and it gives some more insight into (you guessed it) the story. But, it also gives a look at possible alternate costumes and, at least one possible new character...Hawkgirl.(1:49).

I realise that there will probably be an article written on this, but for now I've made this thread.

I'll just embed the youtube version here for those that are too lazy:

I think it looks great! A lot of alternate costumes!

@ADV215: Thank you !

Is there anymore characters left to be announced or is the roster completed?

@Dragonborn_CT:There's (quick estimate) about 8 ish spaces left.... Maybe a little less/more. But, nonetheless, still quite a few.

There's some rumours drifting that, at 1:47, Sinestro might make an appearance. Unless of course, it's simply Hal in an alternate costume.

Must..not..pre-order...

http://www.comicvine.com/justice-league-of-america/65-31815/new-injustice-gods-among-us-story-trailer/92-746988/#73