A) TalkPlayStation.com [:' (]
B) Kotaku [:' (]
C) Announced and shown before 5 is out...
D) Activision are
no longer a member of the ESA and won' t be at E3. Neither will any of their studios, including Infinity Ward.
So, its either bullshit (probable), or it' s a new IP.
There are 100+ people working at Infinity so a new IP is a possibility, ...but i doubt it.