When you're as enigmatic as Radiohead, no hint is too cryptic to mean something potentially huge.

The band have updated their trippy "exploratory audio-visual" app, 'PolyFauna,' which originally included snippets of compositions from 2011's 'King of Limbs' with brand new samples and imagery, prompting the likes of Rolling Stone to speculate that the app could provide a first listen to what could appear on Radiohead's upcoming ninth full-length. Fans can take 'PolyFauna' for a spin here.

Frontman Thom Yorke recently tweeted a handful of photos and sketches of the update:

Guitarist Jonny Greenwood revealed in March that Radiohead should be collaborating on their next album as we speak. "We're meeting up at the end of the summer, and we'll make a plan," he said. "But, you know, we’re a slow-moving animal, always have been. I guess we’ll decide then what we do next."