The best thing to do is cut the main stem just above where the new growth is. Then bury the main stem till the new growth is at about ground level. This will make a bushy plant with lots of pitchers that looks really nice. Then you can try and root the cutting by putting in a plastic bag with sphagnum moss around the base and put the whole thing in indirect light. Chances are this time of year you'll throw way the cutting in a few months. Good luck.
Best,
Chuck