I really hope that this isn't the only thing they have to show in E3
They wil show us a new way to experience Halo...so prep yourself for the Halo Mega Block videogame.
Ooor they could make Lego Halo - The Video Game or something. Sadly they already made Halo games for phones.
Tho as I recall they stopped making it (i mean the mega block piece of....)...but you never know really, up until they will show us the trailer for it.
There's one thing you should not expect...the halo series. "It's not dead" and "they still working on it". Probably they have the title at least.