Hi aklwan. Thank you for your useful information.
I was very surprised you get quickly the news before the Vol.7 wasn't published.

Today, I get Romance Tiara Vol.7 and check the preview of the next issue......
doki-doki-doki-

You'll be happy to see her new story next next month!
  Japanese Title "玻璃(ガラス)の箱庭"
  maybe in English "The miniature garden of the glass"

I don't know how many pages. It will be about "a girl and the Hatter meets in Wonderland net-game world and ...."

I'm happy to see her new story in Romance Tiara Vol.8 (11th Aug).
Once more, thanks for your information, alkwan.