I saw the anime first, so the ending is actually pretty okay for me...
Then I read the manga and figured how mediocre it actually is.
It's been a while since I saw the anime, so I can't remember for sure..
Except for the ending, isn't it quite faithful to the manga?
A full remake is a waste of time IMO.
Unlike FMA, it's only the ending that deviated from the original.
Instead, another way to start a second season can be something along the lines of..
"That was only wishful thinking, a dream. This is actually what heppened..."
With that said, however, I doubt we'll ever see more Claymore...
It's been too long of a break already..