Exactly belgo, everyone is trying to name their baby something 'different'.
I think there will be a few trends. Probably 'old lady/ man chic' will be the biggest initially. I love a lot of the girl's ones!
Agnes, Florence, Elsie, Iris, Ivy, Olive, Pearl, Opal, Agatha, Sylvia, Daphne, Nancy, Maude, Violet, etc
Albert, Arthur, Stanley, Gilbert, Wilfred
I think Brits will also pick up on some foreign imports eg. Elodie, Genevieve, Anastasia, Valentina, Otto, Luca (already fairly popular), etc
I think probably surnames as first names will become more popular slowly (American influence)- Mitchell, Grayson, jackson, etc. I don't like this trend myself!
Slightly more unusual Classic may come back such as Andrew, Peter, Helen, Clare, etc
Overall, it will become much more difficult to choose something unusual for your child