This was to be the co-main for the Jones/Hendo card, no?
Maia is coming off a quick win and is booked in Brazil vs. Story, but they could probably entice him into taking this fight. BJ WAS anticipating on fighting 21 days later AND doesn't have an opponent now. While either of those could work, given the lack of star power on the Jones/Hendo undercard, BJ/Ellenberger would be great.
Siyar or Alves would be fun, but honestly I'd rather see those two go against each other at this point.
Fitch is scheduled for a mid-October fight in Brazil too, but if his knee is ready he may be a suitable replacement.
I think BJ/Ellenberger is the best matchup.
MY MMA RANKINGS
HW Velasquez Cigano Werdum Cormier Bigfoot Barnett Mir Browne
LHW Jones Machida Evans Hendo Davis Goose Teixeira Shogun Mousasi Bader
MW ASilva Rockhold Belfort Weidman Jacare Okami Kennedy Consta Belcher Boetsch
WW GSP Hendricks Condit MacDonald Diaz Maia Fitch Kampmann Ellenberger Pyle
LW Bendo Alvarez Maynard Melendez Thomson J.Miller Diaz Pettis Chandler Grant dos Anjos
FW Aldo Mendes Curran Lamas Frankie Zombie
BW Cruz Barao Fernandes Faber Moraes