Halo anniversary secret terminal 11 (waypoint) ...building up to halo 2 anniversary?

[Lostplanet22]

Well to make it short an user from the 343 industries forum found an 11th terminal on Waypoint that may hint to an Halo 2 anniversary.

http://www.youtube.com/watch?v=9xLhhoXQhEQ

An must to watch got goosebumps ^_^