Spoilers ahead

The Earthrise toys are more for the G1 fans rather than fans of the Netflix cartoon. It’s highly unlikely the Earthrise/Kingdom toy of Optimus Prime will appear in Kingdom. It’s cheaper for them to use the existing models and spend time on whichever new characters are in Kingdom.

In Earthrise there were only a small number of new characters animated, and most of those closely resembled their Earthrise toys (expensive toys too: Scorponok, Sky Lynx, Doubledealer) but some didn’t: Dirge and the other jets for instance are just the Siege seekers with new hats. It’s also why Siege and Earthrise cartoons were full of Recycled characters in new colour schemes whenever they needed extras in a crowd.

In some ways, in a very few cases, the Netflix toys are more accurate to what’s on screen, but only a few.