Board Thread:Questions and Answers/@comment-7730553-20130402162837/@comment-24201834-20140909184837

well don't get ur hopes too High. Sales of DVD/BD in Japan -> average total sales 2.647 copies & imagine that the average number for a sequel in most cases 3-4-5.000 copies (with some exceptions titles who sold less & got a sequel). They were pretty a little low than the average.

source: http://www.someanithing.com/151 & by Volume  http://www.someanithing.com/27

As for the material som1 already mentioned that they are still 3-4 Volumes to be adapted (season 1 one or two volumes ).

In overall there are some chances to happen, but limited basicly cause of the sales. A good factor would have been if the anime helped the sales of the LN's, but i don't have any info about that so i can provide it to u!

Personal Opinion: It was a fairly good anime with some flaws that need a sequel!