It does sound like a price rise. The question is how much of a rise and what new features would they include and or new application would they add to the affinity suite? For example I can see a case for separating Raw development from photo call it affinity catalogue which included a raw developer. The raw developer would have to be improved considerably but it doesn't have to go the full hog of AI masking that could still be done in photo. Another issue is cloud as mentioned above particularly usual to professional users that wish to communicate with clients or business what have collaborative working or those who use use the suite on the move.
As for subscription vs one off perpetual licence for major releases. As a home user I'm in the subscription camp but I do not see why both models can not co-exist. Different models suit different users, professionals and business have different needs from hobbyist/enthusiasts. It is a case of getting the balance right between the two approaches.
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