Where is that? There is no guarantee he is going to ducati. The other thing with JB is - do ducati want to take the whole crew of mechanics with them? It isn't all just Burgess and Rossi. The whole crew has been together for years. Do ducati want them? Do they all want to go? I don't know how long they've all been together, but surely a few of the crew could go on to be chief mechanics themselves?
I believe JB will stay in motoGP for at least a few more years. That time on ONE (TV) in Australia, they had JB on he seemed quite keen on continuing. His main interest was and always will be, motorcycle engineering. Does this mean he will move to ducati? The only people who know will be the inner sanctum (Rossi, crew etc.).
Personally, I'd love to see Rossi go to ducati and have a different crew. It would make it so more interesting to see how he copes. Obviously, I'd then like to see JB and Stoner together, but if that wasn't to be, a JB - Spies partnership would be awesome. JB and de Puniet would be fantastic as well. Obviously that would depend on whether they had factory backing, as JB isn't going to work with a non factory rider at this stage of his career.