Probably not for a while - one bike shop told me that they'd been notified by Shimano that they shouldn't expect regular shipments to resume until 2022. As I read somewhere, the Japanese, Chinese, and Taiwanese - who together make virtually all bike components - believe that the high demand for bikes and components is temporary - just another periodic bike boom - and eventually will fade away. As such, they don't want to expand production for fear that they will be left with excess capacity when interest in bikes drops.
The parts are out there, but you have to hunt around for each one individually. It's a pain in the neck, but doable. I've found that the really large shops like REI tend to have more stock available, but even they are getting short on some items.
Hope this helps.
Kevin Lindsey
Alexandria, VA