Just chiming in that I’d love (and pay a very small amount extra for) auto-translate. No particular need for summaries, just translations, even if just of their headlines, as I scroll. I have a number of Japanese-language feeds but can’t currently use them well in RSS because they’re not browsable in the blink of an eye.
Once I’ve identified an interesting story, I’m happy to click through and lean on Google auto-translate for the rest. It’s mostly just the discovery part where Newsblur would be very helpful for me.