Yes, Sketchup have finally announced dates for their move to a subscription only platform. Sales of the perpetual desktop versions of Sketchup Pro and Maintenance & Support will end on November 4th 2020. After that date, Sketchup Pro will only be available and supported with payment of an annual subscription.
You can still buy the perpetual version of Sketchup Pro 2020 at £530.04 plus VAT from educandi, or upgrade to Sketchup Pro 2020 by renewing your Maintenance & Support from £92.86 plus VAT from https://www.educandi.co.uk/collections/sketchup
Your perpetual version of Sketchup will continue to run as long as you computer operating system supports it. There will be no further updates or support after November 3rd 2021. Sketchup have indicated that there will be a desktop release of Sketchup Pro 2021.