There are two models with much better models.
One is Ivan the Terrible campaign knight model
The other one is Alexander Nevsky if I remember it correctly (the pictures you have provided.
Alexanders Nevsky’s armour is heavier if you compare it with Ivan the Terrible’s armour.
Both have full cavalry bardling (horse armour).
And, yes I would be happy if they change it to these models.
I always use these models when I play, it just needs 30 seconds to change the skin xD
I even made a Reskin mode using all campaign skins.
But didn’t publish it.
The Chinese also have a Mongol-type heavy lancer in the Mongol campaign.
He is also cooler than the current Chinese lancers.