'Halo 5' anniversary news, details and updates: 343 Industries outlines plans for the franchise's 15th-anniversary celebration

343 Industries' sci-fi shooting game franchise, "Halo," celebrates its 15th-year anniversary this week, and the developer is holding a livestream event by tomorrow, Nov. 15, to celebrate the milestone.

It is said that Nov. 15 was the release date of "Halo: Combat Evolved" 15 years ago and that which 343 Industries is proud of to celebrate on Tuesday. The event kicks off at 3:43 p.m. PT through a Twitch livestream.

343 Industries described the upcoming event saying, "During the jam-packed show we'll have a special walkthrough of the Halo Museum, talk Halo Wars 2 with Dan Ayoub & Max Szlagor, hear about some of the team and community's fondest Halo memories, play Halo 5 with fans, talk HCS with Tashi & Strongside, take a look at the upcoming Halo Loot crate with James, answer your tweets and whatever else we end up doing when we inevitably stray from script."

In addition, the game developer also teased fans that attendees will get something at the end of the livestream event. "What kind of birthday party would it be without goodie bags for attendees!? I don't want to spoil the surprise but I think you'll dig it," the developer said.

It is reported that 343 Industries might most likely issue free items during the event. The developer is also expected to talk about "Halo 5's" upcoming downloadable content (DLC) expansions and future plans for the game.

"Plans are being made for some big holiday playlist updates as well as the release of the next big Halo 5 content update," 343 shares. "I know you're eager for those juicy details and we look forward to being able to share more soon."

"Halo 5" received a new content update last September, titled "Anvil's Legacy," which is the ninth free expansion of the game. Speculations about the next DLC includes the possibility that more war-zone maps might be added, as well as new Forge canvases and others.