It could be purely for enjoyment, But he has a track record for showing things off and not doing much with it.
That is true, but Bushi's smart enough to know that anime-ish (?) mechanoid suit things wielding katanas wouldn't really suit Blockland.
So uh, I'm sort of doubting that it's for in-game unless he plans for it to be completely different.
I apologise for my stereotyping, I'm just a bit used to all the toungue-out, ball scratching, 6-year-old on the forums expecting every 3-D model to be some sort of future add-on (not saying you are, however)
I don't really know you so I can't immediately know how you behave and how you usually judge things.
This is just something that annoys me and I rant quite a bit.
Sorry.