Big thanks to @RustedMecha (http://rustedmecha.com/) for passing on the news as I don't have an iPhone or iPad and can't play the mobile version of the game. This is great news because it gives us Dr. Fate fans hope that he'll be made available in the regular version of the game. What's awesome is that he looks to be wearing the Kent V. Nelson version of the Dr. Fate uniform.
On to my review of Injustice Gods Among Us:
I've only played the story mode so far so this is an early review, but from what I've seen and played, the game is everything I wanted it to be and more! Injustice is a ton of fun to play, although a bit difficult to get used to the characters. The story mode allows you to use each character as the story calls for each character's part. The graphics are great and the I love the little surprises in each background.
The story has a twist to it that I did not expect. It is not a straight "rip off" of Kingdom Come but more of Kingdom Come meets Crisis on Two Earths. Don't want to spoil it too much for others that haven't played it, but it explains a whole lot, like why is the Joker playable when he died in the very beginning. The story also explains why mere mortals can stand toe-to-toe with the likes of Superman and Shazam.
Overall Injustice is just a spectacular game. The only thing missing from my point of view is a playable version of Dr. Fate, and it looks like that may be coming soon enough.