I think the djent thing is like most other styles with DT, it's all about the mixture of elements. If they mix a little of that style into songs in certain spots, it could be cool. If they try to do it too much, it might be not so cool. DT has always been about the mixture of metal, prog, melody, etc... for me, so djent would just be an extension of that.
Basically, DT are at their best when they incorporate more than a few elements, djent can certainly be one of them if done right.