Nah this time I think it makes sense for both sides.
1/ PSG has made zero stride this year and one could argue they were worse than any other year. Mbappe MUST be fed up with this.
2/ Mbappe reached his PSG record and as I said last summer, it is a big deal for him
3/ PSG under Campos is trying to get away from the "stars too big for the club", and even if Messi and Neymar leave, one could argue, Campos will not beg to keep him.
4/ Mbappe will once again not get close to a Ballon d'Or even though he is probably more deserving than most players.
Only way I could see Mbappe staying is if :
1/ he likes the moves PSG is making (very very likely the way things are shaping up)
2/ Qatar throws an insane offer and goes over Campos' head (not sure there, since he'd resign immediately)
3/ nobody's willing to give up 250M.