In Bungie’s latest weekly update they have hinted at possibly revealing the name of their new IP on Bungie Day.

Bungie and Acitivision will be partnering up for a brand new IP and they have already made it clear that they will not be at this years E3.

Yup, truth told we have been less and less active on Bungie.net as
of late. Part of that is owed to my aforementioned travel arrangements,
but a significant amount of my time is also now being dedicated to
other upcoming endeavors that wont make a splash on the front page
until Bungie Day closes in around us. Unfortunately, that means there
are just too many balls in the air for me to juggle without letting a
few fall to the ground.

Although Bungie will not be appearing at E3 it doesn’t rule out a possible tease by Activision. However it would appear that you will need to wait until the month after on the 7th July to find out the full details behind the IP.

Source: Bungie