I just realized that Borneo & Panama are the first two seasons to have it's entire final four return for a future season. Gabon, Micronesia, Cagayan, and SJDS are all probably, though the others aren't.
2. Elizabeth is out and Kieth is highly improbable.
3. Teresa is more likely to return than Kim Johnson.
4. I don't see Pashcal returning, though Neleh & Vee are highly probable.
5. Helen is not returning, and Jan & Clay are very highly improbable.
6. I don't see Butch or Matt returning.
7. Lill is highly improbable, Darrah is probably a long-shot to return.
8. I don't see Jenna returning, and Amber would only return for a winner's edition.
9. Twila and Chris are very probable, but Scout is very improbable.
11. Lydia is highly improbable, I don't see Rafe returning, and Danni again is only likely if they do a winner's edition.
13. Becky & Sundra are very improbable.
14. Dreamz, Cassandra, & Earl aren't improbable individually, but it would be unlikely for Cassandra because her season was very unpopular and Earl would only return if they do a winner's edition.
15. Todd is more probable if he overcomes alcoholism, but they're not bringing back Denise.
16. Natalie Bolton is highly probable, and Micronesia is fully achieving this statistic.
17. Matty and Susie are probable, but I believe Bob would return for a winner's edition only.
18. Not sure if Taj says she never wants to do it again, or if she only turned down returning due to timing, but I don't see Erinn returning.
19. I don't see Mick returning and I don't see Production wanting Natalie back.
20. Jerri could return, but it is unlikely Parvati would return.
21. Chase is a celeb and obviously Sash isn't returning.
22. I don't see Rob returning for a 5th time.
23. I don't think production would want Sophie back, Albert is also unlikely, and I wouldn't bet on Coach or Ozzy returning for a 4th time either.
24. Sabrina could return, but I doubt Christina or Chelsea would return, as this season was also not very popular.
25. I doubt Skupin is returning, same with Lisa.
26. I'm sure Dawn & Shiery are out of the question. I'm not even going to acknowledge the fact Cochran could return.
27. I doubt they would bring back any of the four here again.
28. Tony is highly likely to return, fulfilling the goal of getting its final four to the end.
29. Missy & Jaclyn are possible, but Jaclyn is less likely to return over Jon or Missy, and maybe even Baylor.
30. I'm sure Will is never returning to the game again.