Considering the last iPad Pro reported to have had 9 versions listed last year according to this report…
The Eurasian Economic Commission has added nine iPad models to its regulatory database, most likely variants of the announced 11-inch iPad Pro and 12.9-inch iPad Pro.
appleinsider.com
In that article above it has 9 model number identifiers:
A2377 - iPad Pro 11” WiFi only
A2378 - iPad Pro 12.9” WiFi only
A2567 - iPad mini 6 WiFi only
A2588 - No product
A2602 - iPad 9 WiFi only
A2568 - iPad mini 6 Cellular
A2569 - iPad mini 6 Cellular (China)
A2589 - No product
A2604 - iPad 9 Cellular
Bearing in mind these were registered in April 2021 and the mini 6 and iPad 9 were never announced until September…
So these 9 new listings could quite easily be a combination of iPad Air, iPad 10 and iPad Pro models but doesn’t mean any are coming anytime soon.
What’s also interesting the two model numbers A2588 and A2589 appeared in listings last April, and have now been listed again… so whatever product they are being allocated to might have been delayed from last year…