I really want to believe that there will be post Kotono Mitsuishi era of Sailor Moon anime, but who knows.
IMO, it would be for the best if new anime was its own thing like 90s series - take familiar characters, story, and concepts, but don't copy manga 1:1.
Develop villains, reimagine relationships, add new stuff, and yeah, have filler for girls to bond with each other.