User blog comment:B214/Don't ask about season 4/@comment-93.139.190.182-20160711110322/@comment-1359322-20160713025150

Yes it got announced, thought it seem to have become another dead project since. Announced in October 2015, now its July 2016 and nothing is still known. Seriously there have been quite a lot of anime projects announced but they simply remain in the shelve up to date.