They will get a points deduction that makes them miss the champions league once, a fine of something like 50 million and maybe a transfer ban for one period or something like this.
The journalists will call it an unprecedented and huge penalty and then the pundits will say it’s a good punishment, because anything else would hurt the league too much. Then everyone will move on, ignoring that more than a decade of premier league football and all following seasons were and will be compromised by blatant cheating, rendering the competition farcical.