Nope. There was an interview/piece of news somewhere a couple of weeks ago where a developer said that "Stage Brutalities" are the new Stage Fatalities. I have no time to find it though, hopefully someone else has the link.

Sounds to me like the interactions in the arenas can be turned into Stage Brutalities.

yeah it seems like for instance you can feed the sabertooth cat your opponent in the market

Damn, I want some good old fashioned pit/stage-fatalities.
Actually, I haven't seen a stage yet where they fight on a ledge or something.