Manchester City was already acquitted in this regard. If the current issue is independent of this, there is a possibility that they will be banned from European cups again. If they are banned from European cups for 2 years, Pep can leave the team. I think he has very strong opinions about it.
It doesn't even need to wait for UEFA to ban city to make pep leaves from city. If premier league will be giving a serious sanction and that will be enough for pep to leave from manchester city. I think that manchester city has been making pep guardiola feel disappointed with the management of club. The management of the club has been lying to him. The performance of city in UCL will be greatly affected by this scandal. You can read this to know more.
https://www.dailymail.co.uk/sport/football/article-11718131/Pep-Guardiola-odds-leave-Man-City-start-season-financial-charges.htmlI don't see any great reason for Manchester City to put her coach in a dark. if you lie to the manager of your company about the operational difficulties of faults of your company the manager will not give his best or will not be on the same page with the company. If Manchester City is giving punishment only in EPL Guardiola may decide to stay because he will try his best to push the team to top four but if it is extended to Champions League Guardiola may decide to leave Manchester City
In fact, if you look at the reports in the previous few seasons, Pep's failure in the Champions League had actually made him want to leave because he considered himself incapable of bringing the Champions League trophy to the Etihad but at that time the higher-ups could still hold on until now.
I think with the current conditions it will obviously be different because regardless of anything of course he doesn't want to get into big trouble I feel and this is likely not only Pep but there will be several players especially those who will be out of contract forcing to leave.