Bandai Namco Online, as its name suggests, is essentially Bandai Namco's online games arm; in recent years it's been responsible for the publisher's live service push in the form of Gundam Evolution and Blue Protocol.
And now, the plan is for Bandai Namco Online to be absorbed into Bandai Namco Entertainment in April 2025. In other words, it's basically being shuttered.
In particular, Blue Protocol is key part of this story. The multiplayer action RPG was supposed to be the company's first big foray into the live service landscape, but it seriously struggled to find any kind of foothold in Japan, having launched there in December of last year.
Just a couple of months back, Bandai Namco announced that Blue Protocol will be shut down in January 2025, having failed to find an audience. What's more, its planned western release was outright cancelled.