Just an educated guess, but since Bosch only offers a 'fat' 800wh battery, pretty sure the Wild LT will use the existing frame (maybe cable ports added) that the current battery choices of 600/ 750 will remain.
I'd also say that imo trail/ AM riders with the Bosch are probably better served by the 600wh battery whereas the Avinox being so powerful and more suited for true mountain duty, should really have the 800wh battery.
The good news is that the LT version with a 600wh battery, trail tires & a 36mm fork should be able to get pretty darn light in a high end spec.
Gosh, I hope that Orbea build an ISO3 bash guard mount into their Avinox frame.