The upcoming Vanillaware title for PlayStation 4 and PlayStation Vita, 13 Sentinels: Aegis Rim, has been confirmed to be featured at the Atlus / Sega E3 2017 booth through their official exhibitor page.
The official description for the Atlus / Sega E3 2017 booth gives an overview of some of the titles they will have to show at the event in June, including 13 Sentinels:
Atlus U.S.A., Inc. is known for high-quality, deeply immersive, uniquely Japanese and indie video game experiences. SEGA is a worldwide leader in interactive entertainment software products. Don’t miss our booth featuring highly anticipated titles from ATLUS and SEGA, including Yakuza 6, Yakuza Kiwami, Sonic Forces, Sonic Mania, and 13 Sentinels.
13 Sentinels was originally teased in July 2015, and subsequently confirmed at the SCEJA Press Conference 2015. The official website was launched at that time, but the only information given for it was in the form of a debut trailer.
13 Sentinels: Aegis Rim is set for a PS4 and PS Vita release in Japan and, presumably, North America with the confirmation of it being shown at this Western event.
The annual Electronic Entertainment Expo, one of the biggest regular video game trade shows, will take place this year from June 13-15, 2017.