so if what I saw in the trailer is true this is one of 4 different Kizunas available in this collab. A destroyer, (probably heavy) cruiser, carrier, and battlewagon.....oh dear this should be all sorts of fun

This one is also different in term of rarity.
It’s an Elite one (or SR in JP) while the rest are Super Rare (or SSR in JP).

I believe this one will be given for free like as a login bonus.

According to the CN wiki while Morikawa En did have some part, but it was the draft that the other artist finished.