Ederson, Laporte, De Bruyne & Sergio would all be very, very difficult to replace should they wish to leave due to a ban.
I think Sergio will stay regardless.
Only KDB's age makes me wary of him feeling he would have to leave.
Ederson & Laporte are young enough but have ambitions to play for their national sides.
The thing is a CL ban + a potential PL points deduction (tho that seems like journalists using the CL ban to print clickbait atm), should the points be deducted from next season (let's face it, the more likely scenario if the LFC/MUFC lapdog has anything to do with it), next season could be over (outside of FAC & LC) realistically before a ball is even kicked. That would surely be a killer for some players & potentially Pep - unless he decided to stay for 8+ years and signed a long extension (an unlikely scenario given how he sees managerial lifespans)
Needless to say, hopefully the club hasn't been talking nonsense and CAS sorts this shit out