How will relegation change the Super League landscape?

The signing of Terry Campese by Hull Kingston Rovers is an interesting one. 
 On the one hand, there’s the usual conundrum. He’s been absolute quality at times down the years, but he’s now the wrong side of 30, injury-prone and he wasn’t in great form last year. 
 He might go on to be another Brett Mullins or Bradley Clyde, or,