The Official website of the Anime of Sailor Moon Crystal has revealed that the third season will come on Spring and will have some changes on the staff:
Chiaki Kon (Golden Time) will be the new director, and Akira Takahashi (Doki Doki! Precure) will be the new Character Designer. Besides that the staff will remain the same.
This season will cover Death Buster´s Arc which cover the Volumes fifth and sixth of the manga.
The past seasons of Sailor Moon Crystal, as far as i know, have suffered a litle on the animation department (Like it´s team mates on the Toei nostalgia side: Saint Seiya Soul of gold and Dragon Ball Super), so let´s hope that they give this series the treatment it deserves.
Here it is the AniTay Review of the past season.
Also if you are interested on the classical series but don´t want a lot of filler, you can check the Sub Judice´s Spoiler Free Guide.
Via: Anime News Network