Dare I say it but I would have liked to see it all die with a gunpowder age, railroads, trade agreements with foreign powers, disconnection from the kami and fortunes due to the emperor being replaced by government reform, followed by topknots being clipped and samurai resistors being mowed down by cannon fire.
You will all hate me now, but when Hida Kisada comes back to fight Iuchiban again you'll choose the musket balls.
Hate you? I probably could kiss you right now!
It's happened in Rokugan's (briefly) history before. Meanwhile many of the gaijin nations have guns. It's not steampunk in any way. It would have been a neat way to fold the story over with an ending (Or maybe an alternate history as that's been explored before), as it mirrors not only that certain movie with Tom Cruise, but how the samurai seized to be in Japan.
If we keep the 20 years of story and move forward, i'm cool with it and it wont stop me from buying the product. Nor will having or not having a Spider Clan at the get go. However, I find that trying to keep up with 20 years of history may be a bit overwhelming to the new player base we will potentially pick up. Also, let's be honest, and I do not blame the story team for this, but a lot of the jump the shark moment started as soon as the Clan Wars (Crab marching on capitol with shadowlands army) and continued on down the line.
We've had things like Kali Ma (I actually liked that storyline) and Yodotai attacks, but the matter of getting guns in rokugan is as simple as The Mantis Clan or Colony Spider Clan simply not giving a ****. While guns are outlawed, so was communication with Ratlings, Maho, summoning Oni, poison and may other taboo things. The difference between gunpowder, or rather firearms being as gunpowder is around in firework form with the Agasha famlily, is that guns kill the sword and sorcery aspect of the setting. But I feel, in a way they do not, not if we're looking at an end time scenario. In a way it would give a tragic samurai death to the setting as the samurai of history also died; Technology rolling over religion and forcing government reform.
As the Kaiu, Yoritomo and Daigotsu families are no longer names at all because they were the same uniform, share the same rank in the gunline as eta and light fuses to mow down traditionalist samurai, while americanized gaijin give them orders, it would have been cool too see who still wore the armor and held a daisho. Would we have seen a Bayushi and Doji samurai finally shed a tear together as artillery rained on brother and sister from above? Could the Oracles get the elemental dragons to return and murder these gaijin corruptors in a brutal revenge before being severed from the realm of man for good and possibly see these dragons die? Plenty of things to explore. Grimdark and historical but I don't know about steampunk.
Again it would've been cool to see which families held out to the end, unable or refusing to reform.