You’ll find them quite operational
Thanks to a dedicated dataminer, we now know that Star Wars: Battlefront will sport three additional heroes — Princess Leia, Han Solo, and the Emperor. Files have been located similar to the other announced heroes so far (such as Darth Vader), and SoundCloud clips have been unearthed.
Speaking of Darth Sidious (Emperor Palpatine), I got stuck in a Star Wars wiki wormhole the other day for two hours looking up Plagueis and various bits of the expanded universe. It’s probably the most insidious wiki out there.
Did some digging [reddit]