Ah i see lol id seen it a few times before and always wondered. Thought maybe id missed something since ive no played since fm15Nothing anymore. Regen is an outdated term - in earlier versions, after a player retired, they would be "regenerated" into the game as a youth player with similar nationality, skills, etc. Not sure what year it changed, but for quite a few versions now, players aren't regenerated but rather completely random youth players are generated. Hence the new term used - newgen.
I think this "newgen" system has been implemented since fm08, as far as I can recall correctly.Ah i see lol id seen it a few times before and always wondered. Thought maybe id missed something since ive no played since fm15