Pure speculation but here's my thoughts:
Rail game doesn't really matter in these types of comps, I mean it does but honestly if you can 270 on 270 out on rail features, you can make it to the finals. I'm not saying you can win, but make it to the finals. Killing the rails will help you win, but if you can get through them tricking on/off and not fall...you're money.
Candide is one of the more fluid skiers I've ever seen and no doubt he can find something creative to do on rails and I believe he has the game to make it to the finals.
Jumps on the other hand, I'm not sure Candide would want to compete with the young people. He's not going to double every jump. One or MAYBE two dubs, sure but not going to go all Goepper or Brown and double everything with a kicker. Since we all know that creativity and style doesn't win these comps, I just don't see him doing well in the jumps. Now I think he could, again, make it to the finals.
tl,dr; I think he could make it to the finals.