The report, in Japanese, can be found here. It seems to focus on the afternoon event only.
Kiiyan will be joining Suwabe Junichi, Toriumi Kousuke and others for two Dies irae events on June 3, 2-18. Early ticket lotteries for buying the DVD/Blu-ray have already ended, but tickets are still available via eplus’ general sale, and the general sale will be extended to other sites this weekend:
Event: TV Anime Dies irae Special Event 「創造・ヴェヴェルスブルグ城」
Venue: Ginza Blossom (Chuo Kaikan)
Date: June 3, 2018
Time: 14:30 / 18:00