Ring Fit Adventure is the newest Original IP developed in-house at Nintendo. On paper, sounds like another concept-driven game similar in fashion to Wii ____, Nintendogs, 1-2 Switch, and Nintendo Labo. Yet, stylistically and mechanically, it has much more in common with the traditional character-driven Nintendo title like Mario, Zelda, Animal Crossing, Splatoon, and ARMS, making Ring Fit a bit of a mixed breed. For everyone who's played it, where do you think it falls in terms of new in-house series from Nintendo. A traditional Character-based Nintendo IP like Splatoon, ARMS, or Sushi Striker? Or the more concept-driven non-games like Nintendogs and Wii Fit?

I'm not sure I understand the distinction you're trying to draw. What is a concept game? What is a character driven title?

Its like those first games but with an RPG mechanic to keep players engaged. Its an evolution of wii fit etc. with Nintendo putting the focus on fun.

Now we just need Nintendogs where you can make your dogs battle and enter tournaments,

Nintendogs: Vick Edition

In this case, a Concept-Driven game is a game who's focus in on a centralized concept, but doesn't really focus on any specific characters or setting. Think Nintendogs, 1-2 Switch, or Wii Fit. Character-Driven games are games that focus on core gameplay idea, represented by uniquely designed and distinct characters created to fit the central theme and mechanic of the game, IE Splatoon's Inklings being squids because of the Ink mechanic, and the ARMS characters having extendable arms because of the 3rd person stretchy arm mechanic. 

Ring Fit, in this context, would fall much closer to the character-driven side than the concept driven side, since its main focus is on the adventures of a Fitness Hero with flaming hair, and sentient, talking Pilates Ring that represents the controller, and a fantasy world and characters themed after the fitness and exercise mechanics of the game. 

The way you're defining it, then this is clearly in the second category.  The game definitely has characters. I'm just not sure why the distinction is worthwhile.  

On a semi-related note, I think that a Wii Sports type game with a structure similar to this might be fun.  Maybe get the golf story guys to work on it.

I bring this up because Splatoon has been recognized by both fans and Nintendo themselves, as the first new character-driven property created by the now-defunct EAD division since Pikmin in 2001. Since then, EAD began focusing more on concept-driven titles aimed at non-gamers such as Nintendogs, Wii Series, and Big Brain Academy, which while new IPs, weren't character-centric the way games like Splatoon were. Meanwhile, other teams within Nintendo, specifically teams within the SPD division, carried the mantle in developing original characters and worlds, though they never got the fame or recognition as EAD. 

Since the Nintendo Switch, Nintendo has tried to make a full clean break from the Wii/DS approach to developing original games, and doubling down on its core focus as a Character-based entertainment company, rather than just a game publisher. Ring Fit Adventure is a continuation of the Splatoon/ARMS/Sushi Striker trend in developing new IPs in-house, rather than the old Mii/concept-centric approach of the Wii and DS. 

Agreed that it's more of a spectrum. While RFA's characters and setting may not have the same mainstream recognizability as Inklings do now, they're still unique to that specific game, which makes it closer on the scale to Splatoon than to games like Nintendogs. 

OMG

I put Ring Fit Adventure in the same category as Mario Kart Wii.  It's kind of a bridge between the two types of games  The Wii had these concept driven games where the concept was motion controls: Wii Sports, Wii Play, etc....  Nintendo also had all of their normal IP games.  Mario Kart Wii was meant to appeal to both crowds.  It had motion controls but it also was already a character driven title like a normal Nintendo game too.  It was meant to bridge the two types of player together.

That is what Ring Fit Adventure is trying to do.  There is the Wii Fit crowd and then there are core gamers who might want to be more active.  This is trying to appeal to both.