Having watched Adventure Time: Fionna and Cake the D and Dragons Planescape setting does seem an appealing read, but I really don't want to buy any more WOTC books.
I suspect (depending on price) I will buy the 5th Ed '2024 revision' (6th Ed??) - but I suspect the price is going to be price gough because WOTC wants to milk any remaining loyal customer base.
Fionna and Cake was .. A Lot - but was also magical and, I was afraid the ending might suck (because so! much! happens! in! each! episode!) but it was great!