It’s a bit of both.
Obviously, WIP scripts for PC and Diaries are rather confidential. So no peeking.
But I do have ideas for fanfics and such. Many of them have been started but shelved for the moment.
An old one is a zombie apocalypse short story/comic about a mare with a foal looking for the foal’s parents in an abandoned city riddled with the undead and whatnot. (Lucky)
There’s also a sad ghost story starting Sweetie and Scootaloo. Need I say more? (Zero Days)
On the lewder side, I have a fic idea about Spike dealing with mares and their battle with the heat cycle. Oddly enough, it’s not a clopfic. It’s maturely themed, but there’s no sex as the focus. That one’s fun to write. (The Garden State)
One is a more comedic story about Rumble and Dinky trapped in a ditch for two hours and they keep trying to cope with each other. This one is a bit cool because it’s PC’s first official spinoff fic. (Diabetics and Detours)
On the note of spinoffs, Diaries may also get a companion fic that acts as a universe-builder. (The Immigrant’s Guide to Equestria)
There’s a lot more floating around, but too underdeveloped or secret to mention.