I'm so in love with this group
Both of the new members seem to have the OK for interacting with fans on their social media, seeing as Nihei just did a Q&A on her blog and Hikaru has answered some comments on WEAR.
their Budokan rehearsal on Upcomi:
https://youtu.be/V9LHXjqVo2s?t=41m5s
they were also featured in The Girls Live! Their part starts at roughly 17:30
http://www.dailymoti...年9月1日160901_fun
For anyone worried about line distribution, from what I've heard at Budokan it's very apparent that miya is center, but it's definitely not Miya + background dancers.
Since I only heard shortened versions of their two other songs I can only say so about Summer Wonderland for sure, but it goes Miya big part -> all 3 small parts in the bridge -> chorus -> Hikaru rap part -> Nihei rap part -> bridge -> Chorus -> even split final bridge -> chorus