Hi all - I don’t know if this thread is the best place to track current interest in Sequel Ace. Although there is now new discussion about the topic, its buried way down here at the end, and the subject of the OP is about discontinuing support for Sequel Pro rather than adding a new feature which supports Sequel Ace.
I think a new thread with a clear heading (such as @Nick-B’s soon to be auto-deleted one) would act as better wayfinding for those like myself looking to use their preferred tooling.
While on the subject of alternative support: Adminer is very Spartan, and TablePlus is a paid product. For many, the $89 licence may be able hard to justify or out of reach.