Okay, so a thought just randomly occurred to me last night:
As of ADWD Epilogue, the Grand Maester and the Crown Regent are dead, and will need to be replaced.
Now, with the Grand Maester, that's not so tough, I'm sure the Archmaesters will elect a new one (though the intreagues involved might be fun), but with Kevin dead, who will serve as Tommon's Regent?
I suppose Cearsi might try to for it again, but given her crimes, would anyone support her?
Who does that leave? I thought that someone might suggest Jamie, but not only is that problematic (being Kingsguard), but I'm not sure he'd do it.