LAST EDITED ON 03-15-16 AT 02:10 AM (EST)

Could "mystery buff" simply mean that it is a mystery to the players what buff they are picking inside the wrapped up package they are picking?

The new promo does say "one twist" but not sure if we "mystery buff" is the one twist or just an odd phrasing of choosing a new buff?

For instance the Press Images have now been published on the main CBS web site here:
http://www.cbs.com/shows/survivor/photos/1006010/first-look-castaways-drop-their-buffs-and-switch-things-up-on-the-next-survivor/

The images have different captions than the CBS Press Express Site.

The three images on the CBS Press Express site with these captions:

• Jeff Probst hands out new buffs to Aubry Bracco, Peter Baggenstos and the rest of the survivors
  
• Jeff Probst hands over the mystery buff to Peter Baggenstos
  
• Jeff Probst hands over a mystery buff to Scot Pollard

Now have these captions:

• Aubry picks her new tribe assignment from a tray of disguised buffs.
  
• How will the tribes switch up?
  
• Scot picks a new buff during the much-anticipated Survivor tribe swap.