Either do not host at all or if you do consider hosting, email each one to set it out clearly how things will be this year.
That they have to accommodate your needs as things could change drastically day to day.
They each need to arrange food for a day and take turns to cook meals and organise the clearing and cleaning of the kitchen.
They need to pitch in and take turns to clean bathrooms and doing some general housework as you won't be able to.
They need to be hosting themselves in your house but also looking after you.
They need to do a clean up and strip and wash & dry beds on the day they leave as with a new baby you can't be doing this.
I think if you make it clear exactly what you expect and what you are prepared to offer they can accept or find elsewhere.
If they do come, I'd be prepping my husband as to gently be reminding people to do xyz, if he's not happy to do this I wouldn't have them to stay.
In my experience, some family are amazing and I'd have them stay anytime, other expect to be looked after and never lift a finger. It quite depends on the type that would come.