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.
This chimes with a quote from the late Mel Smith, director of ‘Radioland Murders’ and a well-loved member of the British comedy anti-establishment.
In a December 2010 interview with the Daily Mail, he is quoted as saying:
"George doesn’t understand comedy, so the movie [Radioland Murders] flopped. At least it taught me how to use CGI. George is obsessed with it and used too much in the last two Star Wars films — which I thought were ghastly.
“He’s been buying up the film rights to dead movie stars in the hope of using computer trickery to put them all together in a movie, so you’d have Orson Welles and Barbara Stanwyck appear alongside today’s stars.”
Lucasfilm denied this was the case afterwards, but it has stuck in my mind since I first read it.