It is not out yet, but will be out on November 15th this year.
No.
No
Halo: Combat Evolved 10th Anniversary Edition is already out (year 2011). The original Halo: Combat Evolved was released in 2001.
yes
Buy it at best buy.
8
Yes, there is a halo custom edition.
Yes, halo 4 and halo anniversary (which is a remake of halo combat evolved)
back button
1.
I really do not know
At this precise moment, it is currently unknown. Halo CE Anniversary will, however, use the original halo's campaign levels, but will use the multiplayer system and indeed servers from Halo: Reach.