Source: 411mania.com

UPDATED: The following was posted on Twitter, confirming the return of Mysterio to AAA…
ORIGINAL: According to f4wonline.com, AAA will hold a press conference today to announce the March 15th Rey de Reyes show in Guadalajara. It is expected that they will also announce the return of Rey Mysterio to the promotion. There was a graphic circulating last night, featuring Myzteziz (the former Sin Cara in WWE) and a mystery partner vs. Perro Aguayo Jr. & Pentagon Jr. It is likely that Mysterio will be the mystery man.

Cool! Hopefully we'll see him in Lucha Underground, too.

Big Red Machine wrote:Cool! Hopefully we'll see him in Lucha Underground, too.

Just a matter of time