It was just a rumor, no official thing.

One Piece (Cover + CP)
Bleach
Naruto
Gintama
Reborn!
Toriko
Eyeshield 21
Mago
Kochikame (CP)
Bakuman
D. Gray-man
Inumarudashi
Neuro
Binbougami (One shot, CP)
HunterxHunter
Sket Dance
Asklepios
Psyren
ToLOVEru
Chagecha
Gouwan Cyborg Tsutomu (One shot)
PTF! Jaguar

Absent: Bari Haken

#50 will come with: Bakuman Cover, ToLove CP, One shot "Gekidan! Inpurobizêshon" by Asou Shuichi