My guess is by the time secret/unlockable character are unlocked and both Kombat Packs have been released, we will end up with a full rectangle.
If this is in fact legit, I am content with the base roster. There are plenty of characters I want to play as.
High Interest/Favorites: Sub-Zero, Kabal, Noob, Raiden, Baraka, Kotal, Erron, Shao Kahn, Scorpion, Kollector, Cetrion
Medium Interest/Willing to give a shot: Geras, Frost, Cassie, D'vorah, Liu, Jade, Scarlett, Johnny, Kung Lao, Jax, Kitana, Kano
Least Interest: Jacqui, Sonya
Assuming the DLC is adding 4 MK and 2 Guests per pack, I can only assume that I will find more characters I want to play in DLC.
The announcements are being handled terribly, but to me, the game is coming together pretty nicely. Obviously there are some things missing that I would like to see, but you cant have it all (Shang Tsung, Nightwolf, Cyborgs etc.)