The Nov. 19 event in Jackson, Miss. will also feature the return of undefeated lightweight Ryan Couture against an opponent to-be-announced.
A veteran of Japanese MMA, the BJJ black belt Ribeiro (20-4) dropped a controversial decision to Lyle Beerbohm in his Strikeforce debut in May, while Wilcox (9-3) is riding a four-fight win streak.
Couture (1-0), the son of UFC hall of famer Randy Couture, scored a first-round submission of Lucas Stark in his pro debut at Strikeforce Challengers 10 in August.
Pictured: Vitor Ribeiro