A few series which needs to have its end year updated (unless sequels are announced)...

http://www.imcdb.org/movie.php?id=1475582
http://www.imcdb.org/movie.php?id=14264160
http://www.imcdb.org/movie.php?id=14935960
http://www.imcdb.org/movie.php?id=11443824
http://www.imcdb.org/movie.php?id=12415562
http://www.imcdb.org/movie.php?id=13851952
http://www.imcdb.org/movie.php?id=14134550
http://www.imcdb.org/movie.php?id=15567434
http://www.imcdb.org/movie.php?id=13009190
http://www.imcdb.org/movie.php?id=13229964
http://www.imcdb.org/movie_9335498-Demon-Slayer--Kimetsu-No-Yaiba.html - This can probably have its end year set as 9999 since it's highly likely they'll adapt up to the end of the original Manga.