If Swatch group limits the sale of ETA movements

[gmh1013]

like Ive read in watch time mag.... wont some of these small swiss watch companies go out of Biz?
Im sure they dont have the money or a R and D dept to make an in-house movement.
Some of this companies use close to 100 percent of ETA....I wonder what will happen to Tudor if they cant an ETA from Swatch....Will Rolex make a "cheaper" movement or use Japanese movements?