Work on the Saint Aelfric Customary continues; we are getting into more “occasional” services now, where there are fewer options to choose from. But options, there still are, and so some sort of customary is needed to assist the decision-making.
One of the biggest things about the Baptism service in our (2019) Prayer Book, along with the 1979 Book, is that it is expected to be a part of the Communion service. The baptism basically takes the place of the Antecommunion, or the Communion liturgy up to the Offertory. In the classical books, Baptism was a stand-alone office, and as a result there are a number of tradition-minded folks who lament this change. Some are concerned that the Eucharist will overshadow Baptism. Some are concerned that the clarity of our baptismal theology will be hidden amidst a longer, less focused, liturgy. Some are concerned that the Baptism will overshadow the Communion. So there are a number of considerations at play here, giving us good reason to say “no thanks” to the Prayer Book’s recommendation of holding Baptisms within Communion services. There are times that’s a fine idea, and times when it may not be.
So you can read more about that, and how these decisions can impact the execution of the liturgy as a whole, on the Customary page here: https://saint-aelfric-customary.org/customary-for-holy-baptism/