Potential season 4 cliff hanger?

I’ve been thinking about how Abbott Elementary just randomly decided to introduce Ava’s dad, which obviously means it’ll become a big plot point in the second half of the season…what if this season ends with us finding out Ava and Jannie have the same dad? It just seems super weird to randomly introduce him. It has to be for a bigger reason right? Quinta Brunson knows how to write good, enjoyable quality tv imo