A new OVA for Thus Spoke Kishibe Rohan, manga from part 4 of Jojo's Bizarre Adventure, was announced this Sunday (18), along with a trailer. The manga already had 2 episodes in OVA format, adapting other chapters of the same.
Adapting the chapters "At the Confessional" and "The Run", a special tour of 6 cities will be held for the anime, starting on December 8th of this year.
Via: Moetron