I don't know if it exists, but it would probably be a good thing to have aria labels for those common buttons on these popups. It would benefit a11y and pave the way for a better automatic approve/reject by the browser (or some plugins). I think it won't end up in a disaster like the DNT header.
There are (at least) two problems with this approach: it requires that the banners actually use these labels (which they might not want to) and if it requires some kind of browser support, the largest browser vendor is also in the tracking business.
>Member States shall ensure that the use of electronic communications networks to store information or to gain access to information stored in the terminal equipment of a subscriber or user is only allowed on condition that the subscriber or user concerned is provided with clear and comprehensive information in accordance with Directive 95/46/EC, inter alia about the purposes of the processing, and is offered the right to refuse such processing by the data controller. This shall not prevent any technical storage or access for the sole purpose of carrying out or facilitating the transmission of a communication over an electronic communications network, or as strictly necessary in order to provide an information society service explicitly requested by the subscriber or user.
-- Article 5(3) of the Privacy and Electronic Communications Directive 2002
("Directive 95/46/EC" being the old Data Protection Directive, which has been replaced by the GDPR)
* Grandparent was talking about getting rid of cookie banners.
* Parent was talking about API to prevent tracking needing an extension for all local storage.
Of course to get rid of the original cookie banners, preventing tracking through other means is irrelevant. But nowadays most sites I visited got rid of the original cookie banners, so in my mind the complaints extend to those, even if it's not correct.
What happened when the GDPR came in was twofold:
1. Everyone became acutely aware of data protection legislation, because the GDPR actually had teeth when it came to enforcement.
2. The ePD referenced the Data Protection Directive, and when the GDPR came in to force all references to the DPD became references to the GDPR.
The consequence of #2 is that the hand-wavy "implicit consent" that sites relied on to avoid cookie banners (why show a banner asking for consent if you can just assert you do have consent?) went away - the GDPR made it clear that consent must be explicit.
Firefox has a pretty decent system for this I believe. They also try to go against alternatives like 'local-storage' and a whole slew of other attempts at fingerprinting / creating super-cookies.
So that's pretty unlikely
But websites will never use it because they make it annoying on purpose.