I'd remove and pot up the keiki if it were mine. The old cane's are pretty much used up. There are no nodes left to produce flowers or more growths so they are just acting as a nutrient source for the keiki. Don't remove the new growths from the keiki. I would put them all in the same pot unless you want to give one or two away. Be sure to keep the cool and dry next winter. Should get more flowers and less babies that way.