Gearbox has announced in a new post by Creative Director Randy Varnell on the Battleborn site that active development has ended and that he is moving off to a new project. It will not close, but simply go into "maintenance mode". The final update will be deployed in the near future. Afterward, a small team will address emergency bugs and keeping servers in shape.
We do know that most Gearbox staff is at work on an unannounced "highly anticipated project", though as yet speculation is just that. Many hope that a new Borderlands title is incoming, though time will tell.
I’ve been working on Battleborn nearly exclusively since 2012, and in some ways, that work stretches back to 2009 for me. It’s been a long labor of love with many of my good friends at Gearbox, and I’m proud to have shared that journey with you, our community. Your spirit and loyalty have been a constant inspiration to the team at Gearbox.
Also, I want to personally thank you for giving Battleborn a chance, and dipping down into a new universe with us. We make games for you. And many of you have shared with us how much Battleborn has meant to you personally.
Read the full post on the Battleborn site.