Magister Negi Magi might have hidden depths to it - but it remains to be seen whether Akamatsu has the bravery to further explore it and leave behind themes that have been proved to serve him well - the harem them, and the usual fanservice, and usual style of humour.
From what we have seen in Love Hina, I wouldn't expect too much - LH had alot of potential but I think Akamatsu chose to be safe with the material he had. Of course, I would be very happy if Akamatsu proves me wrong in Magister Negi Magi.
Anyway, does anyone notice who were with Setsuna when she appears at Konoka's home for the first time (in the flashback)? They look really familiar and hinted at a pair of Aoyama sisters who we know so well...
