So what day exactly is F for family coming back?

Just like the title subject! Answer Me!

And another thing; F is for Family is based on Bill Burr's childhood, but Bill Burr is a middle child of five children, and for some reason, Frank and Sue Murphy only have three kids. Where are the other two, if it is supposed to be based on how Bill himself grew up? We know that when FIFF left off, Frank had just got fired, so he'll have to start the next episode up finding a new job, and Bill and Sue need to get two more kids.
Now that Bill Burr and his wife Nia are expecting their first child, writing in a pregnancy and birth of the third and the fourth Murphy child is going to come in more organic.