But a revival isn't dependent on the technology or the type of apps that can consume RSS. It is the lack of outlets publishing on a regular basis. Social media's grip on attention has only grown stronger since RSS readers were more popular.
Blogs are mostly gone comparatively speaking to 10-15 years ago. Many authors do an email newsletter.
RSS is still around but it's a content supply problem and not a technology issue.
That's what I've tried to do with Lenns.io. You can subscribe to any blog/website, regardless of their RSS support. Then, if they don't expose an RSS feed - the website's titles are followed. That works with about 90% success.
I'd be happy if you give it a go https://lenns.io. Bonus - you can set priorities to feeds and the number of items per source to be listed on your dashboard (so not a single subscription can overrun it)
But it had far more value in a world with a lot of individual blogs, many of which were only updated occasionally, and without other reliable discovery mechanisms for those blogs--other than going to a site every few weeks to see if there was something new.