This isn't spoiling the movie, but it's obvious that the red-head baby is going to be sent to the boy's house.
However, the boy isn't gonna get a baby brother, but a baby sister (as in, the baby is a girl).
Cliche for the baby sibling turning out to be the opposite of the gender the main character hoped for (a female character wants to have a baby sister, she gets a brother instead; and a male character ends up having a baby sister instead of a brother);
But I still want see it.
Like I said, this isn't spoiling the movie, it is obvious that the baby is going to be a girl, possibly for a marketing purpose like they did with Pebbles Flintstone in her first debut.
Speaking of marketing, with all of these baby characters having different hair/eye color & styles, they should make a website of this.
Where people can customize their own baby doll (or dolls, if they want the doll to have a twin or triplet) & have it/them shipped to their home by mail, like the MyBarbie. Com website does.
Not too mention that the babies are a lot cuter than Cabbage Patch Kids IMHO.
