Mano Erina’s 6th single titled Haru no Arashi has been confirmed by E-hon. It seems that there will only be three versions this time (Regular, Limited A and Limited B).
I’m glad to see that the single has been confirmed, although kind of sad that there will only be three versions. This might be due to there not being that many differences between the regular and the Limited C version (as far as I know the cover was the only difference).
The profile picture above was updated today along with the information for her new single, so it is most likely the costume for her album release or her single, although we will have to wait and see.
The release date is set for 2/24.
EDIT: According to E-Hon the title for Mano Erina’s 6th Single is Haru no Arashi (English: Spring Storm) and not “Haru no Kaze”, I edited the post since this is the only reliable source available.