It was announced during the 2019 KanColle Shinshun Cinjufu Jazz Matsuri that the Kantai Collection (KanColle) franchise will be receiving a brand-new television anime series. Like the majority of these announcements, a release date nor any story details have been released. We do know that Studio Engi, a studio that was formed in April 2018, will be producing the anime.
This has been an announcement fans have been waiting for since March 2015 when the final episode of the anime series announced a sequel. Fans have been met with radio silence about the sequel until now. Previously, a movie was released in Japan in November 2016 but it was made clear that the movie and the sequel anime series were two separate projects.
While a promotional video for the new KanColle anime was shown at the event, it has not been made available online although if you do a bit of searching, you can find a few live recordings of the trailer at the event.
MyAnimeList.net describes the series as follows:
With the seas under constant threat from the hostile “Abyssal Fleet,” a specialized naval base is established to counter them. Rather than standard naval weaponry, however, the base is armed with “Kanmusu”—girls who harbor the spirits of Japanese warships—possessing the ability to don weaponized gear that allows them to harness the powerful souls within themselves. Fubuki, a young Destroyer-type Kanmusu, joins the base as a new recruit; unfortunately for her, despite her inexperience and timid nature, she is assigned to the famous Third Torpedo Squadron and quickly thrust into the heat of battle. When she is rescued from near annihilation, the rookie warship resolves to become as strong as the one who saved her.