On the new Star Wars?
Stern Pinball is a descendant of Sega’s Pinball Division, which was previously at Data East. Stern Electronics descended from Chicago Coin, but ceased operations in 1985.
Several of the former Bally/Williams designers have worked or do work for Stern Pinball, but I don’t believe Stern owns any of the IP from those companies. Without digging too deeply, it appears that both Bally and Williams are owned by Scientific Games, although it’s unclear whether they own the IP to the Pinball machines or not. Chicago Gaming has produced remakes of both Attack from Mars and Medieval Madness that have been well received. These were produced in the Stern factory, if I recall correctly.
The primary producers of new machines are Stern Pinball, Jersey Jack Pinball, and Spooky Pinball.