I'm super confident it's really happening. 60 Minutes is running ads for this Sunday night, featuring both Stevie and Chrissie Hynde. I only just caught the end of the ad, but the voice over was worded such that it sounded like they were on their way! The Pretenders have shows in the UK until mid October but nothing after that, so that fits with Stevie's mention of leaving for Australia in "late October" (though it still might be later than that in reality).
Pretty much all FM/Stevie tours here coincide with a 60 Minutes story, so I'm hoping for a proper announcement in the next week