In April you will have Launch Bay open with Chewbacca and Kylo Ren meet, stormtroopers patrolling outside through out the day, Jedi Training, Star Tours, Path of the Jedi recap 10 minute movie. Other than that nothing else is guaranteed, there are rumors that the fireworks will be extended but no official word on that as of now.
Vader will not be available for meet and greet but you can see him during JT
As soon as I know anything I post on this site.
Star Wars Weekends was cancelled, last year they made an announcement on that. so no SWW this year