According to the booklet bundled with Vocaloid producer Jin's new single CD "Children Code", his media mix project "Kagero Days" was announced to get an anime adaptation.
Children Code original PV (Youtube)
Kagero Days original PV (Youtube)
Kisaragi Attention original PV (Youtube)
Kagero Days novel official website
Kagero Days project on Pixiv Wiki
Kagero Days project is a series of original Vocaloid songs posted on Niconico. It's about a secret group of boys and girls called "Mekakushi Dan (Blindfold Brigade)". Although the objective of the brigade has not been revealed, the members are all unique and peculiar such as psychics, an idol, Medousa etc.
Source: Scan of the announcement
Original Thread on MAL
Anyways, I can't say I'm too fond of the songs linked (at least the vocaloid versions, I liked the covers) but I can say I'm interested in them becoming an actual anime.