Actually, losing Mbappe will not affect their dominance in League One, it's just that their strength is lost in the UCL League. I want to see it from the other side, losing Mbappe, Ramos, Neymar and Messi is a big blow for PSG. The team will undergo a major transition and will need time to rebuild its strength. If we talk about business related to Mbappe, PSG and Legue 1 will definitely be affected by the loss of Mbappe. However, Legue 1 should have 2 or 3 clubs that can compete with PSG so that the league is exciting and competitive. Players who have the potential to realistically increase their selling value are players who play in Serie A such as Vlahovic, Chiesa, Oshimhen, Kvara, who are suitable for increasing their broadcast value, although not as significantly as Mbappe.
However, in my opinion, whatever Mbappe's decision to leave PSG next season, it is likely that PSG will remain a strong team in League One next season. But yes, they may no longer be considered contenders for the UCL League trophy. Yes. Currently, Mbappe's replacement at PSG is more suitable for the player Oshimhen, and PSG has been targeting him since last season.
PSG performance not really effect yet although losing Mbappe for next season and keep dominance in Ligue 1 as the winner every season, but PSG will on difficult position when playing in Champion League next season after looking with Mbappe contribution this season success make PSG qualify until quarter final. Mbappe have final decision with his future leaves PSG after his contract expiring, but he still not announce yet which become his club for next season and want to give more respect with PSG and keep focus until the end of this season by giving the best performance in domestic league and Champion league match.
PSG have list some target will recruit next season for replacing Mbappe's position, its not difficult with fantastic salary payment offer by PSG for their players target. Victor Osimhen become the players linked will replace Mbappe position for next season but Napoli still not accept yet with official offer from PSG.