Shayanomer wrote: I found a source, https://postimg.cc/cKtWhXN9
Erica Schroeder is the new voice of Wobbuffet.
That's BigDocFan from Bulbagarden Forums who asked about it. He's actually good friends with Lisa Ortiz on Facebook and normally is able to get official cast confirmations from her (at least when the episode has aired properly). Been helping him out with guesses too.
Kayzie retired from voice acting after the first episode of Sun & Moon where she voiced Mr. Mime, XYZ being her last full season.