stock mode and reverse stock mode have been confirmed already. i dont know about any other modes though
Guts (berserk) " I've never expected a miracle. I will get things done myself. "
At comic con somebody asked about special modes such as big head mode and stuff and Omar said they are working on a lot of different modes and they wanted to show them but they didn't have any videos ready and they know how we love videos. Hopefully this means they will go into it at gamescom.