[Tactics]

I can understand shmaster, Tatsu as Anos is kinda hard to replace considering his history voicing young man with royal authorities.

Originally Posted by Obelisk ze Tormentor

That reminds me, Taneda Risa never got her Nakiri Erina role back after her health problems post Season 2, right? Fortunately, she never lost her role as Himeragi Yukina during that time, probably because the OVA format of Strike the Blood was more accomodating?

Thankfully she's now active again playing roles in Azur Lane back in January and she'll also be in the upcoming Utawarerumono playing Kuon.

Spoiler for Take it with grain of salt as I heard it from a rumors board:

That one is unique as Taneda Risa case behind the screen somewhat related to her mental health.

It kinda bad (further speculated to be caused by thought of "deteriorating health = no good seiyuu") to the point Strike the Blood staffs encouraged her to rest.
Akatsuki Kojou's (the MC) VA himself, Yoshimasa Hosoya, dislike idea of continuing the series without her he reduced his workload to help her take it easy; this is why if you look back to announcement around medias, OVA is originally intended as S3 but they changed it into OVA in respect to Taneda Risa well-being.

She's also on Zombieland Saga taking role as Mizuno Ai.
Some VA enthusiasts theorized Mizuno Ai background (idol with tragic death who now doing her best to return) is a callback to Taneda Risa history.