In 2223, I'm going to guess that there will be multiple trends going on simultaneously.
There will be parents that really want to remember the past or who are attracted to a retro feel, so maybe a mixed bag of names like
Athelstan,
Herman,
Floyd,
Lucille,
Nyla, and
Ethel. Since our present day would also be really old (like we think of the 1800s),
Olivia and
Liam might make a comeback.
I suspect
Islam will still be a very common religion, so there will be quite a few Arabic names.
For fun, I'm going to predict a trend of mythology inspired names like
Rhea,
Apollo,
Juno,
Artemis,
Vulcan,
Tian,
Fuxi, Guanyin,
Amaterasu,
Inari, etc...
Depending on whether 2223 is an era of optimism or morose doom-saying, I would expect either some exploratory reach for the stars and nature loving names like
Vega,
Cosmo, and
Terra or something end timesish like Repent or
Omega. Optimists are probably more likely to have kids, so perhaps
Hope and
Esperanza.