I don't see it happening personally, I think Toulouse are in pole position. They've got a stronger squad than us, a lovely stadium, a large sponsorship and business network they've spent years building up, very close relations with the city and regional authorities, and a general feeling of being on the up. Plus, it would allow Elstone to say that he (and the game generally) is pro-expansion but only in the right circumstances.
On the Broncos front the main issue is (again) the stadium which we know SL wasn't keen on 2 years ago. In terms of re-building the squad, a quick look at the Wolfpack website says the following are available: Cunningham, Russell, Stanley, Leutele, Mellor, Lussick, Mullally, Miloudi. All are good SL players.