According to MMA Junkie through a person with knowledge of the plans, below you can see the scheduled broadcast team at UFC 263

UFC 263 broadcast

UFC 263’s main card airs on pay-per-view/streams via ESPN+ pay-per-view for residents in the U.S. beginning at 10 p.m. ET.
Televised prelims on ESPN start at 8 p.m. ET following early prelims, which are tentatively slated to begin at 6:00 p.m. ET and stream on ESPN+.
UFC 263 desk analysts

Veteran broadcaster Jon Anik serves as desk host on the post-fight show. He’ll be joined by three-time UFC title challenger Chael Sonnen and former Strikeforce champion Gilbert Melendez.
Megan Olivi and Brett Okamoto will also join the post-fight show for updates and analysis.
UFC 263 roving reporter

Longtime UFC correspondent Megan Olivi will conduct pre- and post-fight interviews backstage with some of the athletes on the card, as well as report additional real-time updates for the event.
UFC 263 octagon announcer

The most famous octagon announcer will do his thing once again, as Bruce Buffer will introduce the fighters before battle.
UFC 263 cageside commentators

Jon Anik will serve as the leading man on the mic from cageside, and he will command play-by-play alongside color commentators Joe Rogan and recently retired lightweight contender Paul Felder, who will replace Daniel Cormier in the booth for this pay-per-view event.