Ever since I've known rugby league there have been predictions of its imminent death. There are more threats now but rugby league in the UK will still survive in some format as a professional sport. I do see us going backwards a couple of decades though in terms of development.
There are a few big concerns I have though:
London: If London Broncos go, I'm not convinced they'll survive at all, it'll take a particularly dedicated financial backer to keep it afloat never mind succeed. Homeless and on a shoestring relegated parachute budget isn't enough to pay ground rent as a tenant anywhere within the M25 except for the smallest of grounds while still having enough money to pay for a scratch side. Regardless of what some people think, a pro side in the south is a big draw for development and recruitment. Shrink that back to Widnes being the most southerly pro side in England and you're instantly a northern sport.
Development Officers: Whoever thought that the game would do well without development officers strategically placed throughout the country is a blithering idiot who deserves to be removed from the sport for lfe (with no review). Having seen the work that other sports' development officers do just to keep the game going at school level, never mind everything else, I'm convinced that we've saved a few beans this decade but next decade will see a marked downturn in the number of adults in the game just because of this one idiot move.
France: I'd really, really love to see Toulouse do well and use it as a stepping stone to a proper French professional league in the early 2020s. Unfortunately, it's extremely unlikely they'll get a SL berth in 2015 as the bar is a bit too high to be realistic. If they come into SL2 (or whatever it'll be called) then you're getting into the same problems as last time. Even if they do get into SL, they're going to be highly reliant on the very fickle French TV to bring in more money to the deal and a relegation will see all that go.
Salary cap: We're so far behind union now on salary cap terms that I'm genuinely surprised that more people haven't gone over. It's even worse in France. I think we'll reach a time when love for the game can only keep players for so long when they see even third-rate union players getting more than rugby league marquee players.
I could go on but I have to do some work today...