There's also the xmas variant of Nyarlathotep (at SR!) a year from now :P
Do we really need to have a "main element" or we can balance each ones ?
In the long term, specializing is always better. Currently, having balanced-ish elements is doable, but there's more and more mechanics coming up which ensure that not all your elements can be up to spec at the same time.
The Miracle Ticket is the first one (since we didn't get Accessory Quests last week for some reason), so if you're willing to put 50 bucks down for this game, that's where you need to decide which element you will pursue. If not, then you can put that decision off for later when we start getting these mechanics.
So almost 3 months after it was first announced, Samael (SSR kamihime) has been added to the gacha yesterday. Back then, I think Aidoru asked if Kitamura Eri voiced her R scenes as well. According to Samael's entry on the wiki, no, Kitamura Eri does not voice her in the R version. She voices her in the all ages version, while they got someone else for the R version.
Oh, and the maintenance yesterday also added 5th floors/levels to the accessory quests. Does that mean that this old-strongest-content-yet becomes the new-strongest-content-yet?
hm? how do you know who voice the characters in game?
ID:201799
my main eidolon [last update July 13th]
I don't think we know who voices the other characters, but specifically Samael/Kitamura Eri was one of the announcements at Tokyo Game Show a few months ago. IIRC, she even came on stage for a bit.