For today there’s no decision to discontinue Consent Manager, it’s a big step (both business-wise and technologically) and a lot to consider.
What I can promise is to get back to you when I know what and how we are going to do (rhetorical, I would anyways 
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The X button missing alternative text is still an issue. Has this been addressed? I may be a few versions behind. I was able to fix it with JavaScript, but would rather have it fixed in the builder instead of doing a full custom. Thanks.