I'm going to make a snow bike similar to these http://www.northlegion.com/ But with a long travel rear end and a long travel front fork.
It is going to have A-arms in the rear that will push on 2 inboard shocks, one for each side. this way you can do drops and turn. The Northlegion ones are like BMX bikes. Mine will be like a Freeride or Dh bike but for snow.