this is what i found in wikipedia espanol to aru majutsu no index III 2015 and the movie Gekijōban To Aru Majutsu no Index -Othinus Arc- 2016
and that also means that the 3rd season well enclud LN novel
EDIT: News came from untrusted source; edits to Spanish Wikipedia confirmed as vandalism. Images removed. heraldofmeridian♣ 14:00, February 4, 2015 (UTC)