SpaceX is scheduled to launch the next group of Starlink satellites on December 1st at 6:20 PM. This launch will be visible from all of the viewing locations mentioned in my Rocket Launch Viewing Guide.
The time of this launch comes right near the end of the twilight phenomenon window. The launch may produce some nebulosity at stage separation and the cold gas thruster firings from the booster may also be visible for a brief time. However, as the booster continues its northeasterly trajectory it will enter eclipse and its twilight phenomenon will end. The booster entry burn should still be visible 2° to 3° above the eastern horizon approximately 6-7 minutes after liftoff. The second stage may produce a slightly longer twilight phenomenon as it climbs higher but it too will pass into eclipse before sinking below the horizon.
Update #1
The Launch Hazard Area for Wednesday has been cancelled. The one for the backup date on Thursday remains in effect. The times are 30 minutes earlier than they were for Wednesday which means the launch could take place around 5:50 PM. That time would produce a highly visible and long lasting twilight phenomenon.
Update #2
This is going to occur right in the middle of the twilight phenomenon window so there should be a good show.