Chances are this isnt being released until after the RCX show. Gotta show it before you blow it!
I honestly dont believe anything will come presoldered. Tekin doesnt do that because they believe that the user should have the ability to choose the length of the wires. They will most likely not have wires soldered to the can as well which is fine for me because the application I place the can will allow me how I want the wires attached and I can add my own quick dissconnect for the can. Everything I have ordered from tekin has come with all the hardware and good instructions, So there shouldnt be any worries of the hook up if your novice or only slightly educated at Speedos.