Quote from Celicia;207469:
In a sense, it's good if Witch Hunter doesn't get an Anime adaptation. How many adaptations actually stay true to their printed version? (If only it were like FMA: Brotherhood).
There are plenty of animes that followed the manga properly.
The anime adaptations that split off usually do it because they managed to catch up to the manga, but the manga never finished. They can take three options here.
1. Finish the series with another ending (FMA, Elfen Lied, Soul Eater, etc)
2. Span it out with filler arcs until a new batch of canon is available (Naruto, Bleach, etc)
3. Cut it to a hiatus and hope that one day it will get a new season (D Gray Man, Black Lagoon, etc)
In cases like Negima, or series that tend to be a visual novel or light novel, the storyline is intentionally changed from the very start for the anime adaptation. This can either go two ways. Excellent or fail.
Take Code Geass, for example. The manga was absolute ****. How it managed to get an anime is beyond me. But it did. And they turned it into an awesome piece of work.
Obviously, starting a Witch Hunter anime now wouldn't be a good idea, as it would end up like another FMA.
But I would like to see an eventual adaptation. Its too good a series to not get one.