Questions about sdl 1.3

my studio is currently working on a game wich uses sdl, it is a commercial game for windows and mac, our game is scheduled for release in mid 2011. first of all will sdl 1.3 be released by then second of all will there be lots of work involved porting the game to sdl 1.3 third of all can we use it without a commercial liscence (its dynamically linked) what version of Directx will the windows version use and we plan to port our game and sdl to xbox 360 do we need a commercial liscence for that?