I'm not sure that the guy behind it saw Phoenix as a successor to Broncos so much as an successor to the old Fulham RLFC. Broncos moving to NW London still leaves something of a gap in SW London. Obviously the project will have less impetus as there aren't a couple of thousand hacked off Broncos fans looking for a club to follow but there are enough people who want a specifically SW London club with Fulham nostagia thrown in then there might be room for another entry club in the London league.
Thanks for that. You're right but it would be wrong to rule anything out right now.