Facebook's biggest product event of the year kicks off Tuesday - here's everything we're expecting to see

The headset will retail for around $200 — a steep drop from Facebook's existing $400 Oculus Rift. But it will be designed for stationary or seated use, unlike the Rift, which supports room-scale location tracking.

The Oculus Go headset is expected to be similar to the Gear VR by Samsung, according to Variety. The device was first announced for "early 2018" back in October.

There are at least nine VR or AR-related events scheduled to take place over the two-day event, including "Lessons from the Frontier of Social VR," and "Creating Flagship AR Experiences."

Back in February,  Facebook’s VP of AR/VR, Andrew “Boz” Bosworth even suggested on Twitter that this could be Facebook's biggest year for VR yet:

We can also expect a full update and roadmap from the team behind Facebook Spaces, the company's first official VR app, which was announced at last year's F8, and is expected to be supported by the Oculus Go.

Under 70 days to go until our biggest F8 to date -- where we'll share the biggest AR/VR news from Facebook to date. https://t.co/hHXeEIdJaW

"Join the Instant Games team and one of our most successful developers to learn how to build, grow and monetize games for a new generation of mobile players," reads one panel description. 

Any video game news will most likely be connected to Facebook's new content creator platform, powered by Facebook Live, geared toward professional gamers. In addition to funding individual video game streamers, Facebook also introduced live tipping and paid subscriptions this year as possible revenue possibilities for streamers.

Messenger and WhatsApp, Facebook's twin messaging platforms, each now boast more than 1 billion users. 

David Marcus, the head of Messenger, has been a regular fixture at past F8 events. And with Messenger gaining steam, that's likely to be the case this year as well.

We don't know much about these yet and it's not clear whether Facebook will say more about original videos. But Zuckerberg has made it clear features that encourage group viewing of videos, rather than random user-generated newsfeed videos, are where the company is focused. 

Facebook made a splash at last year's event with futuristic projects from its Building 8 test lab. 

Since then, Building 8's founding boss Regina Dugan has left Facebook. The company has said Building 8 is not going away, but it will be interesting to see how much stage time, if any, the group gets at this year's F8.

We'll be covering the keynotes, announcements, and chatter around the conference next week — check back for updates!