My fiancee has a 5 year old son, they are living in the Philippines. She is currently waiting to hear if her annulment hearing has been successful.

As she has already been
married, having a big wedding in the Philippines is not so important for her and she tells me that she would prefer to have a cheaper registry office wedding in the UK and no honeymoon!

My real question is, would it be better to bring her son with her on a fiancee visa, or wait until she gets her FLR and then apply for her son to come to UK?