Today Playlogic announced that Fairytale Fights will support 4 player online with voice chat.
Appearently, the official words for 4 player multiplayer mode was only for the offline I guess.

But it doesn’t matter, because it’s now officially supporting 4 players offline AND online, with voice chat. This applies to both PS3 and Xbox360, so hurray! Everybody’s a winner.

Snowhite is very happy with this news

Now, the word from Rogier Smit, Executive Vice President of Playlogic:

“We’ve now finalized friendly fire to be optional based on all the feedback we were getting from consumers at Gamescom. We’re dedicated to providing a game that we know consumers want and hope that these changes are just the first of many in the development cycle, reacting to our communities’ wishes. We’re planning multiple DLC updates and are always looking for feedback and interaction from those playing the game,”

So yes, just keep nagging to the developers about what you want as a feature BEFORE they finalize the product. Attend conventions like Comic-Con or PAX and make sure they listen. Then your wish might really come true.