On Wikipedia, is says:
However despite the new look from the old series and manga this series has been getting a lot more flak from critics and fans alike than when the 1st series aired. Many complaints stem from the fact that most of the characters have been redesigned to look different than from the old anime series and the manga. Most of which center around Nodoka and her new hairdo that essentially looks almost totally different than from the manga and 1st anime. there has also been complaints about her so called "Cosplay Card" that gives her a pair of reading glasses. Also for the reason that Asuna no longer has her signature heterochromia (2 different colored eyes). Many people also are complaining about it because it has nothing to do with the original Manga story line what-so-ever. Many Professional critics have complained that despite that it's a retelling of the story, the story-line itself seems to be totally incoherent and just plain not well thought out. There have even been calls for it's cancellation altogether. And there are rumors that Akamatsu may just pull his license out of the series, effectively canceling the show.
If you like Negima!? like me, you don't want it to be cancelled, so someone make an online petition or something to stop the cancellation. I would do it, but I have no idea how to make an online petition. So if you make an online petition, post it on here and people can see the link to it. Thanks.