From the BBC:
"I think probably the next thing I write, or the next thing I publish, will be for children," she said.
She told fans that she had a "number of ideas on my laptop", but wouldn't reveal the details about what she had been working on.
Children as in, younger than the HP audience. Does that mean middle grade? Easy readers? Picture books? Time will only tell.
Dum dum dummmmmmmmm. (<--Why I felt that this story required ominous music, I dunno. And yes, yes, this story is from last weekend. Sigh. My feed reader is out of control.)