I feel that using deepfakes is more in the way of filming of George Lucas than Disney: Lucas has always tried to do without “living” actors in his films, and to replace them with image banks or CGI-characters that he could assemble at will during the film editing (IIRC, he speaks frankly about this wish in the bonuses of AotC).

I believe that he would probably use these deepfakes extensively in his new films if he had kept the license of SW. And the result wouldn’t be as ugly as CGI-Leia and CGI-Tarkin, nor as rambling as using Carrie Fisher’s old takes in TRoS and trying to make a story around them.

It’s certainly both scary and revolutionary, but IMHO, that’s the direction cinema will take, as inevitably as the arrival of DV twenty years ago.