Because the only season two that fits their narrative would be Aeon, Edge Master, Hwang, and Rock, and there's a good number of problems with this lineup. Aeon and Hwang would be fine inclusions, but you're going to get people who will not be happy with having to buy the other half of Aeon's moveset when it was already in the game. Edge Master, unless given a unique style with his trademark longsword that he's never actually used in-game, would be a sold mimic, and that's the opposite of good will if you're trying to sell DLC characters. Then there's Rock, who has all but been assimilated into Astaroth, for all intents and purposes. The other option would be Li Long, but he's got even less traction than Hwang, so I wouldn't hold my breath.Well then, with respect, you don't know the first thing about how ready publishers are to start making money this way, particularly when they own their own development teams. And that's before you consider all the extended evidence here and the fact that Namco has already adopted this model with its other fighters in the last year. The writing is on the wall with this one: season two is just short of a lock, but still a substantial certainty and I'm confused as to why you keep saying your are not expecting it. Is it based on more than just a vague impulsive call? What combination of specific facts with regard to this property / this company and its business practices and basic industry realities makes you so convinced that they wouldn't avail themselves of a model for selling their products that gives them vastly improved net returns when compared against their base product and allows them to tailor production investment much more closely to demand? Why are you so convinced Namco, who is about as ideally positioned to take advantage of this trend as any company is (and has already started to do it with their other properties) is going to pass up that easy and lucrative model (which if they can establish it as the new normal, will allow them to do an end run around the base game pricing freeze that has been in effect for twenty five years) with regard to this one particular franchise? Look, a lot of things can come along keep it from happening--not the least of which would be poor sales on the first season--but I think the smart money is clearly that it's happening.
They could, for the sake of argument, throw the narrative to the wolves and have a season two that had Yun-seong, Setsuka, Hilde, and Algol in it, but it doesn't make any sense to me for them to do this, instead of just saving those four for SoulCalibur VII. They've come this far, including Cassandra and Amy, taking only the timeline of 1583-1590 into account for characters being included in the game, and they've also not been bending the rules and allowing characters in where they shouldn't be, or "retconning", if you will. They've gone above and beyond to keep the story the same as it originally was, instead of making it work to keep characters/styles like Viola and Z.W.E.I. in, for the extreme example, or Setsuka and Hilde, for the not so extreme example, going against their principle of unique weapons first, even entertaining the idea of having "clones" that they're reworking to make unique instead of just using the unique weapons that they already have.
If we were just talking Namco, yes, they'd absolutely take every opportunity they could to make money. But this is SoulCalibur, the redheaded stepchild, we're talking about here. We don't get the lasting support, even if it means making money, in lieu of other projects. They cut off SoulCalibur V's CaS packs without finishing them when Tekken Tag 2 was on the horizon, even though they doubtlessly would have kept making money by continuing to release more and more parts, because people eat the customization parts up like candy. I have no doubts in my mind that we will get a SoulCalibur VII, the "threat" of this game being the last game meant nothing to me, because if SoulCalibur V couldn't kill the franchise, then SoulCalibur VI won't either. SoulCalibur VI has been doing much better than SoulCalibur V that it wouldn't be nearly as long of a wait for the next game, so instead of looking forward to a season two, we should be looking forward to SoulCalibur VII, not only getting the extra characters, but the game and narrative that supports them.