Many rumors were laid to rest during the Fight Night Chat session with Ed Boon and the Mortal Kombat development crew.

The first is there are NOT any additional characters available at the select screen for Arcade or Puzzle Kombat.

However some interesting clues were dropped as Ed Boon was leaving.

Here is a quote: "FOV 120 dudes FOV 120!"

Tony Goskie had this to say: "SPIDER KAHN 4832"

It may also be important note that Ed Boon also said "Rekio = S.U." but this should be taken with a grain of salt because I'm not certain if this was a joke because it was said after that chat had ended.