That seems somewhat unlikely because Leon didn't pretty much exist in the original work. The world was saved by Olivia (player) and the bunch of (useless) capture targets. Angelica didn't have a knight to fight for her, she had to fight herself, lost, and was disgraced. We can assume Leon in the original game wouldn't have even appeared because he would have been either married off to some 50 years old professional insurance fraudster (who would have him killed for insurance money) or would have died trying to be an adventurer without any otherworldly knowledge. Luxion was Olivia's (the player's) asset.
Maybe this new villainess actually read the news and knows Leon is an extremely strong hero. Or maybe Leon just is a villainess magnet...
nah. he just shares the face and name with the villainess's dead, little brother. causes quite a stir when he meets her parents.