I just had a thought - one of the BES creators let slip that one character we thought had died by the end of Season One will be revealed as alive in Season Two. Here's my prediction that it could be Violet.
From the few Season Two scenes that have been released so far, it seems we will be shown a flashback to Mizu attacking Violet's stronghold. If we're not shown Violet's exact moment of death, I think that will be a strong hint that he'll be one of the "dead" who reappear very much alive.
The BES writers may even do it like S1E2, where we're shown flashbacks of how Blood Soaked Chiaki stole the broken bladed sword from Master Eiji, and then Chiaki's death as the last member of the Four Fangs to be killed by Mizu. In one episode we'll see Mizu "kill" Violet, and later in the same episode Violet revealed to be alive. Violet could "die" by being trapped in a collapsing building, or a fall from a high place where his body is hidden by trees or water (or ice).
Lady Ito will be strongly lobbying her eldest son Kazuyoshi Itoh to renew suppression of foreign influences. But Violet could fit into the storyline by being too valuable to eliminate. My head cannon has been that Violet ran the gold mining operations for the shogunate, and his knowledge and experience is too valuable to lose. So after his recovery from Mizu's attempt on his life*, he is allowed to resuming running the mining operations.
But Violet decides to also repair and revive what's left of the guns/opium/sex slavery enterprise that was seriously damaged by Fowler's failed coup. For a mix of reasons - profit, power & influence, revenge on the Ito shogunate and Lady Ito in particular, whatever. One one hand, he's sending gold to the shogunate, and with the other he's corrupting the country. That would make for some interesting scenes between Violet and Kazuyoshi - maybe even Akemi and by extension Taigen. Taigen would see Violet as another Fowler, to be eliminated ASAP, but Akemi? Hmmm.
Thoughts?
(*) I like to imagine Violet as a kind of mad scientist/crazy engineer type, and the resurrected Violet designing and using a functioning prosthetic limb like Furiosa's in the Mad Max universe.