This Vangelis is not the Vangelis named Alejandro Granados that died in 2002.
Originally in AAA and occasionally popping up on their TV, Vangelis has spent more time wrestling on indy shows. Vangelis broke in, at least under that identity, as one of Los Warriors, AAA's strange Village People group. The Warriors never made it much farther than their feud with the Barrio Boys, though the wrestlers would occasionally pop up individually or get recycled into other gimmicks. Vangelis also was part of ENESMA.
Vangelis claims he's in CMLL to win the championship back, but he's been booked on a far lower level than Mistico and a rematch is unlikely. Most likely, Vangelis is in CMLL just to get some regular work, though he's not really gotten that and has wrestled only a couple times a month. It remains unclear how long CMLL will keep Vangelis around, as he's tended to be a below average wrestler and doesn't immediately seem to offer something they don't already have.