Disney's Hollywood Studios has announced an entertainment change:

Quote Originally Posted by Disney Parks & Resorts

To prepare them for the trip to Batuu, the First Order Stormtroopers will return to their Star Destroyer for a short furlough beginning July 7. Guests will once again have an opportunity to interact with First Order Stormtroopers when Star Wars: Galaxy’s Edge opens on Aug. 29!

First Order Stormtroopers will bring a new presence throughout Black Spire Outpost, patrolling the area and engaging villagers and travelers alike. Wherever someone goes in Black Spire Outpost, the First Order is always watching! From time to time, Kylo Ren himself may even arrive in Black Spire Outpost, impressing upon its inhabitants the power and strength of the First Order. He consults with the First Order Officer assigned to this trading port and sets out with a contingent of Stormtroopers to interrogate the locals, seeking any Resistance sympathizers.
As described, the First Order Stormtrooper characters are part of streetmosphere inside Star Wars: Galaxy's Edge rather than the mini-parade previously presented along Hollywood Blvd.