Is there a possibility of having a Halo Custom Edition Anniversary on this game
If not why?
What would a “Halo Custom Edition Anniversary” be? Are you asking about a limited or special edition release? Won’t happen. If they were going to do that it would have been released at the same time as the regular version. At this point anyone who would have purchased a limited edition version has already bought this one, so sales of a limited edition at this point would be tiny.
I’m sure it would be nice to have the modding tools available but I just don’t see it being feasible.
No. nononononononono. NO. Custom Edition wasn’t even made by Bungie/Microsoft, it was a port to PC with some little tweaks here and there.
I wouldn’t worry too much about a Halo cea for pc because theres plenty of modders trying to make higher quality versions. An example is this http://www.halomods.com/ips/index.php/forum/19-custom-map-team/ which was told to me in a different thread.
Then theres moddb site that might have better looking updated graphics too.
It would be wonderful to have an Anniversary version of Custom Edition, but we have excellent mods such as CMT SPv3 and Project Lumoria already that are doing amazing work with Custom Edition already, so I’m happy with what we have 
> No. nononononononono. NO. Custom Edition wasn’t even made by Bungie/Microsoft, it was a port to PC with some little tweaks here and there.
Yeah it was ported by Gearbox and ran off the Gamespy servers. i dont see a separate release being really feasable but if 343 pulled inspiration from the really good maps like Revelations and Requiem I bet we could expect some sweet DLC.