Okay if we completely ignore the ways in which it would fuck up the plot, how devastating do you think older!WWX be for all the little homosexuals in MDZS?
I mean, let's say he's a proper shixiong this time. A bit older than Nie Mingjue even. Maybe he goes straight to Lotus Pier when his parents die because he's old enough to know where to go for help, so he's still a disciple of Yunmeng Jiang and everything except he's now in a weird grey area between the kids and parents. Maybe this solves the jealousy issues and maybe it makes them worse idk.
Point is: Grown up WWX being several young men's sexual awakening while remaining (thankfully) entirely oblivious.
Jiang Cheng is worst off immediately. He has to live with that. But also maybe he becomes a little bit used to it (he's EXTREMELY pleased when WWX calls him shidi and coos over him in front of his rivals at Cloud Recesses and on nighthunts even if he's belligerent about not being coddled. Lan Wangji is seething openly. He's winning).
Nie Huaisang? Look its a gege who is actually nice and indulges his whims.
Lan Wangji we already know what you are.
Lan Xichen is torn between being in love with Da-Ge and Wei-Ge (he can have both)
Nie Mingjue develops a BingLiu-esque rivalry with him.
Jin Zixuan ends up being slightly more reasonable mostly because everyone keeps openly comparing his looks to WWX and wondering if Jiang-guniang would settle for JZX if it weren't for the politics of it (he's so irritated that he does in fact try to make more of an effort with her earlier on).
