Cosleeping and new baby

I am still cosleeping my toddler (2) and i am pregnant atm. Is it a bad idea to continue cosleeping my toddler once the baby comes? (Baby in a bassinet, of course). Ideally i would want to get her to sleep alone before the baby comes as i fear the baby will wake her a bunch and she wont get good sleep, but i also have family coming to stay with us to help and we dont have enough beds. Any suggestions would be helpful.