Meica is something Unique but she isnt perfect to carry an entire branch( she has menhera moments in her priv due to jap autism)
Based on the rumors they've collected a lot of the more popular ES speakers, at least the ones that don't have country-specific audiences. I don't think Meica will have to carry a branch given that there are several recently graduated ES vtubers in the 100k range.
Meica of course had 200k subs while she was in WACTOR and 100k as an indie.
If Luna Rurine is in, she had 100k in WACTOR, and 43k as Nisha Nixyeva.
If Emberlith is in, she had 100k YT subs and 100k Twitch followers as an indep.
If Lily Endou is in, she had 21k in Sendai One, the largest of that agency, and was bilingual ES/JP.
I don't know if Aimi Hada from Sendai One made it but she was also fully bilingual.
There's probably more candidates, there aren't really any superstars but there are plenty of ES vtubers in the 20k-200k range.
Speaking of ex-Sendai One... Ava (who was Aono Nemo in the agency) went on indefinite hiatus / graduated on April 15, with
a message that included "I hope we see each other again soon somewhere else.". Her spanish was never that great, so I am unsure if she'd end up in an ES gen, but she always had a fair number of spanish-speaking fans. Possibly a JP company. Also she hit 30k subs as an indie which is decent as a recruit for any size of corpo.