Neo Gaf did some research...for those interested.
These are previous games worked on by these individuals.
Atsushi Inaba:DMC 1/VJ 1/2/God Hand/MadWorld/Vanquish
Yusuke Hashimoto: RE 3/Zero/Remake/4/God Hand/Bayonetta
Mari Shimazaki: God Hand/Bayonetta
Yusuke Kan:RE 3/Remake/4/Dino Crisis 1/2/Onimusha/MadWorld/Bayonetta/Vanquish
Hirono Sato: MadWorld/Nights Journey Of Dreams/Shadow The Hedgehog.
Masami Imamura: Vanquish
Takaaki Yamaguchi: DMC 1/Remake/Bayonetta/Vanquish
Hiroki Onishi: DMC 1/2(Ouch!)/Vanquish
Koji Tanaka: Vanquish
Misaki Tsukamoto: (?)
Shuichiro Chiboshi: Vanquish
Kazunori Inoue: RE 1/2/3/Remake/4/God Hand/Bayonetta/Vanquish
Masami Ueda: RE 1/2/3/VJ 1/2/Okami/Bayonetta/Vanquish
Daisuke Sakata: God Hand/Bayonetta/Vanquish
Hideki Kamiya: RE 1/2/VJ 1/2/Okami/Bayonetta
The only weak link is Sato.
BTW, that demon at the end of the trailer is Gomorrah(the dragon Bayonetta summons to finish off Beloveds).
But the fact that it isn't covered in hair means it isn't being summoned by a witch, it's just physically there.
This could mean up to two things:
1) You fight demons in this game as well.
2) You go to Inferno.