First up, Paramount and Nickelodeon have unveiled the look for Kathryn Janeway in Star Trek: Prodigy. They also confirmed that Janeway herself is not appearing in the show. Instead, it turns out that Janeway is the face of Starfleet's Emergency Training Hologram, used to help civilians pilot a Federation starship if the crew are incapacitated. They also revealed that Star Trek: Prodigy takes place in 2383, five years after the USS Voyager returns to Federation space, but will be set in the Delta Quadrant, raising interesting questions about how the Federation starship (presumably the USS Prodigy) central to the story ended up there. We still don't have an air date for Prodigy, although it was originally targeting a mid-2021 release.
Second up, Star Trek: Lower Decks Season 2 will air in August this year and will see a return for Jonathan Frakes as Captain William Riker of the USS Titan, although given how Season 1 ended, that's not a major surprise. The producers have also confirmed that Lower Decks has been renewed for a third season, presumably to air in 2022. The trailer also indicates that at one point the team gets to pilot a Miranda-class starship (think of the USS Reliant or Saratoga).
Next, Star Trek: Discovery Season 4 (which wraps shooting soon) has a shiny new trailer and confirmation of a 2021 air date, probably in the autumn.
Finally, Star Trek: Picard Season 2 also has a new trailer and confirmation of a 2022 debut. Tantalisingly, the trailer (and a separate tweet) confirms the return of John de Lancie as Q in live-action. Q had a brief cameo appearance in Lower Decks but it's good to see him return to test his wits against Picard as well.