I think 343i has the technoligies to bring back custom challenges and why won’t they? Either that or make it easier to get to inheritor.
If they did they would have to fix the glitch that saw lots of players receive bans for doing Custom Challenges and hitting the 200k credit cap. The system worked fine for years until 343 took over and then players doing CC started to receive credit bans.
So until they fix that problem I wouldn’t like to see them return.
In my opinion, Inheritor is a rank you must earn, not get easily.
And custom challenges were fun, for a while.