I have 4 Super Chili Hybrid plants I started from seeds last year, and a Jalapeno plant I bought last spring. I had no clue you could overwinter peppers until a few weeks ago. I'm sure you could imagine my excitement when I discovered I could have even more peppers earlier in the season! (Especially since my Super Chilis did so well - at least 50 peppers per plant!)
I brought my plants inside about a month ago and trimmed down my Super Chilis so just the main stem was left. This is so they don't waste energy trying to grow fruits, and it will concentrate all it's energy on simply surviving the winter. My Jalapeno plant still looks really good. It's still very green and not drooping at all despite getting less sunlight and I've been watering it less. I trimmed off a few of the leaves that didn't look so good, and I'm going to pick the last couple peppers but otherwise I think I'm going to leave it as is and see what happens.
This is what they looked like when they first started to flower:
This is what they look like now: