I would think it highly unlikely that I would find 3 months temporary care for my child(ren) then go back to the original daycare. Perhaps for 1 months time where we would use our holidays and try to have family help out but beyond that I would be looking for a new daycare.

Not only is 3 months a long time, long enough to settle in with a new caregiver. But, I would think many families would struggle to find care in a daycare home that is for only 3 months. I don't think many daycares would be willing to take in children knowing they will leave in 3 months.

I would plan for the possibility that you lose all families. SO be prepared to have some savings and to be looking for new families when you resume care.