I certainly hope FN doesn't make a small .380. Looking at their history, like HK they tend to make products more marketed toward LE/Mil as opposed to tiny little pocket guns. I imagine/hope the smallest they make is some sort of subcompact 9mm, especially since in todays world 9mms can be made almost as small as .380s.
I'd really like to see a sc 9mm with a more contoured frame based on the FNP. I personally feel the decocker levers could be a little flatter against the frame for concealment purposes, while at the same time remaining perfectly functional in a smaller model. There are a few subcompacts that retain the most of the handling characteristics of a fullsize handgun, and I think FN could bring one to the market.
I'm constantly looking for a reason to sell my 9-M, but I've yet to find one. I'm definitely interested in future FN products for CCW purposes (or any for purpose for that matter). It's a little heavy, wide, chunky...and dead reliable.