I agree with this 100%. Even series that have “significant” mechanical changes like Street Fighter - you could make a case that the difference between SFIV and SFV is not more than the differences between SFII and Super SFII. SF III is kind of the exception, but tellingly it wasn’t all that popular. I think a combination of things, including the death of arcades in general and the lack of online play contributed to that as much as any real fan distaste, but I think there is a real case to be made that fans demand the same game over and over again. And I think it sucks.
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Regarding KI, I feel very strongly that the series has had pretty substantial differentiation in the cast and the gameplay between iterations and I really want to see that with any new KI. I don’t necessarily want to pick my favorites but I would be very happy to see half the roster not move forward into the next game. I think it makes sense to ditch the guests. I agree Shadow Jago is a good candidate to leave. I think combining Omen and Shadow Jago into a “real” character makes sense if there are gameplay elements they want to keep from those characters. I also think Shin Hisako can go. I would be fine if Hisako left (sorry storm) but from a business point of view she’s a popular new character and I think they could do plenty with her. Maybe make a stance character that alternated between Hisako and Shin Hisako - although I haven’t really thought that out. I love Tusk but it’s hard for me to see how they could develop his archetype more.
For the game overall, I think the core combo mechanics should stay. Linkers, breakers and counter breakers are all great. I could live without manuals, although I know some people will howl. But the presence of manuals is one of the reasons people insist that breakers aren’t worth it and that counter breakers are bad. To me it seems like an “out” of the combo game for no good reason.
I would like some advance thought to go into the animation and the variety for the autodoubles and linkers. If there are going to be 30 characters in the game then the ADs need to have a uniform speed or be more easily distinguishable (I’m looking at you Hisako). It doesn’t make sense for some characters to have really confusing and hard to read ADs while others (like Riptor) have incredibly obvious tells that making breaking easy. If there are going to be 8-16 fighters then it’s fair to ask us to put some work in and learn the break points. But for a roster of 30, where some characters have really hard to read movements I think that’s a problem. If they want to do a single animation for punch and kick autos that’s fine with me, but do that for all the characters not just the ones at the end when you are running out of money. In other words, make deliberate decisions with an understanding of the game’s future.
I think ultra combos should be reworked. The musical ultras were great for this game but we don’t need recapture repeats ultras to try to get 110 hits. It’s played out. I’d like to see them go back to the super high speed ultras with a few tacked on juggles at the end that was used in the first two games. I also think KI2’s mechanic of adding to your ultra for each ender that you used in the match is really cool and would be much better in a more modern KI than it ever was in that game. I would stick to adding hits to the ultra and leave behind the additional hits in each ender though. This would make it a fun bonus for players rather than something that impacts the competitive game.
Finally, the visual style. I’m very happy with the way the current game looks but would love almost any reworked style. Even if it’s just variety for the sake of variety. I think some of the characters (Sabrewulf) would benefit from an update in both design and just execution of the aesthetic.
Finally, it would be nice to see something that makes people say “wow, that’s neat!” This could be striking visuals, weird ideas like KI 1 and 2s infinite bridge levels (yes I know this was terrible for gameplay) or pseudo 3D rooftops. I think this game started out with amazing gameplay and over the top particle effects for wow factor. They toned the particles WAY down - which earned much applause from the competitive community - but really made the game less of a spectacle.
So this is what I would LIKE to see. But honestly, what I EXPECT to see (assuming we get anything at all) is a graphically updated KI 2013.5 that takes the existing character models and move sets, exports them to a new engine, tweaks some of the interactions, polishes up the models and then calls it a day. I expect this for the same reason Capcom used the same SF sprites in ten games. It’s just a huge reduction in cost to copy paste your last game compared to actually making something truly new. And I honestly couldn’t say that’s a worse business decision than giving me what I want.
TL:DR
I would love to see bold changes to KI in a new game. But I don’t expect that will happen.