If you're not doing the colorwork you can continue knitting in the round. If you want to knit flat (non-circular) you can do it on the dpns, still using 3 to hold the sts. You'd just be turning to knit on the WS and when you finish one needle, use the empty one to knit onto, just like with knitting in the round. But you can just keep on knitting in the round for as long as the colorwork would be instead.
sue- knitting heretic