I don't like that either, about Survivor, and it probably means the show is just hanging on with as small a budget as possible. It's cheaper just to show footage of the tribe members stabbing each other in the back than to devise one more elaborate challenge each week. Swan song?
But Jeff Goldblum is out of L&O:CI and D'Onofrio and Erbe are coming back for the series' final season. A fitting and proper way for the show to draw to a close.