if I`m not mistaken, 15 out of these 21 groups will appear for the first time. it`s nice to see Hachamecha, Akishibu, Houkago, Especia and KNU announced but...
I really hope in the next announcements they focus more in established groups or else this year we will have a festival with a lineup VERY different from previous years (which is not always a good thing).
regarding GEM, they were up in the sixth announcement last year, so there`s still time. Dempa Gumi has that weekend open too, so I`m praying for a comeback this year.
we`re up to 93 groups already and no signs of Anna S, Nzero, Izukoneko, Allover, Asfi, Otome Shintou, Namida, Camouflage, SIR, Shizukaze, Shibuya Dominion, Super Girls, Seishun Gakuen, Cheeky Parade, Chu-Z, 9nine, Nato Kan, PPP! Pixion, Party Rockets, PLC, RioRio, Flap Girls School, Fairies, Heisei Kotohime, Yurumerumo!, Yume Miru, Ryutist, Rev.from DVL... there`s too much missing. I`m already preparing myself for a big disappointment.
edit- oh, this year we may have less announcements since we have already more groups than last year by the fourth announcement time... maybe just seven or six this year? one thing for sure is that even if they added all the groups I mentioned, they would already surpass the previous limit... and if they do this, they better set one or two more stages.