is futei big name
...
Kind of. Lol. He has had much more panel time than JKR or Kou Haku Kou. So in that regard, he is a bigger name than those two. He also holds the same rank as them anyway.
The other thing is what was being referred to with "the Riboku Army". Does that refer to the entire Zhao force currently being led by Riboku or does it refer to Riboku's personal army?
Besides, out of the three Generals currently with Riboku, I would much rather Futei go than anybody else. Lol.
Would be huge if Mutin killed SSJ. What are the odds of that happening?
I doubt it. SSJ seems like he is being set up for a backstory regarding his tribal connection. The bloke can converse fluently with the Quanrong and there is his epithet of "Orphan of the North". I think there is too much currently going on for his past to be explored, so it will probably happen later.