The co-president of the Yamaha Guitar Group that bought Ampeg and Line-6 is the founder of Line-6.
I would expect to see integration of Line-6 digital technology into some Ampeg products. They will want to introduce something small as soon as possible. As a starter, perhaps look for a digital Ampeg pedal that competes with EHX, maybe in time for winter Namm. Major new products may not be the top priority but are certainly in the works. Some current products will be discontinued.
There will be a massive push just to set up the infastructure, distributors, manufacturing, customers service, and engineering. This is a lot of work. People have to be hired and quickly trained in the Yamaha way of doing business. Those retailers that carried Ampeg products will have to be willing to take on the Yamaha lines. They want a good supply of products in the stores and visibility.