It's way too early to say the season is bad. I mean, the season's gimmicks are bad, yes. The only show-ruiner left pathetically though and IMO there's good enough people to make the second half of the game interesting.
When are the producers going to learn that EVERY time they do returning castmembers against new people the returning castmembers will dominate completely?
If it were up to me they'd either do all returning or none returning and nothing in between.