I certainly understand the frustration a lot of fans have about them having Fiji as a permanent location now. But I really don't mind that. As long as they're bringing me a very strong and interesting cast. If there's one thing I wish they'd change is the editing. This season had a more balanced edit towards the contestants, similar to Koah Rong edit, and that for me is great. The australian version of Survivor has a fantastic editing, giving each of the contestant a time to tell their story. The american version should be more like that.
About the returning players, I also don't mind much, but they have to be more "careful". Game Changers was a huge mistake by mixing A-lists like Sandra, Tony, Malcolm, JT and Ciera with some b and c-lists like Sierra, Brad and Troyzan. And the editing just made things worse. Aubry and Andrea got really far, but had a very lame editing.