Darje has said that he'll play whatever formation suits the team that is assembled so I don't know if a 4-3-3 is a given.
But, I don't know if I'd want Burns as a primary striker, he had a great season for us but he's only really had two standout seasons in his career, could we rely on him for 10+ goals?
I think we'll be looking to get an import striker. Either Burns or Vidosic one one wing and Krishna on the other with an import striker would be pretty formidable.