Disney today accidentally announced that Fantasmic! at Disneyland will return with new scenes and magic this Summer.
When it returns (expected just before the 4th of July holiday, but may be delayed now), new scenes will include Pirates of the Caribbean, Aladdin, The Lion King, and Tangled characters. Further details on these scenes were not provided as of yet. This was confirmed today in a post by D23.com that has since been taken down for being posted before a formal release was made by Disney Parks.
The Pirates of the Caribbean sequence was first rumored right here at WDWNT.com in August 2016.