According to its official website, the new Sailor Moon anime
will be broadcast on Niconico starting July 2014.
Some staff were also announced:
Original Creator: Naoko Takeuchi
Director: Munehisa Sakai
Series Composition: Yuuji Kobayashi
Animation Production: Toei Animation
Theme Song: Momoiro Clover Z
Source: Official site
Previous related topic: New Anime 'Bishoujo Senshi Sailor Moon' to Stream Worldwide Winter 2014
Update April 27
According to Nico Live, the new main cast has been announced.
Sailor Moon/Usagi Tsukino: Kotono Mitsuishi
Sailor Mercury/Ami Mizuno: Hisako Kanemoto
Sailor Mars/Rei Hino: Rina Satou
Sailor Jupiter/Makoto Kino: Ami Koshimizu
Sailor Venus/Minako Aino: Shizuka Itou
It was also announced that the anime will be remade and will start streaming on July 5, 2014, ever first and third Saturdays of the month.
Discussion continues from here.