The final season will be split across 2 cours, the first of which is premiering sometime in 2024. Check out the ANN article for additional cast/staff information. Synopsis of the source manga from AniList:

One night at Cherryton Academy, an herbivore student is brutally murdered. Among the members of the Drama Club, the herbivores’ suspicions naturally turn to their carnivore classmates… The prime suspect? Gray wolf Legoshi. But he wouldn’t hurt a fly. Or would he? Will dwarf rabbit Haru bring out the beast in him? Or are his feelings for her…something else?