No significant new content is coming, they have actually been pretty clear about that. People just don't want to accept that, since the game is an empty shell*, and probably closer to a tech demo than a finished game. The plans (as published) and statements on the steam page etc all suggest the same thing: this is it. A bit of spit'n'polish, and it's done.
Though at this point I don't know what will get people to wake up and smell the coffee, a lot of people still think the game will magically turn into whatever fantasy they have in their head if they just sit around saying "yay taleworlds!" all day, or something.
*empty shell is not equal to sandbox