Xenosaga and Xenogears seem to be doing pretty well for itself, as far as staying in peoples minds.
Now will it be talked about in the same light as Mario or Zelda, of course not. We are talking about 35+ years (and Mario I think is creeping on 40 years) of history. Now if there were only a generation where we could play practically all home console LoZ's, and heck why not update the old 3D games graphics, that would be amazing woudn't it? Oh wait.
I'm not talking about those games, I'm talking about Xenoblade Chronicles X. Don't get me wrong, it's a good game, but it's hardly talked about now even 4 years after its release, by the time it's as old as the N64 is now it'll be little more than a footnote.
Nintendo had lost their ambition during Wii era. This console was a massive success and they thought Wii U would be fast-selling as well. Within the first year Nintendo realized that this wouldn't be the case and from that point on I have the impression they got their ambition back. 3D World was the first proof – a perfect game with full of love designed and without gameplay bugs. Splatoon, Mario Kart 8 and Mario Maker really showed that they wanted to make good games for this specific console. All games got updates for about a year and got better and better, though they were not rated as high as some N64 titles, which is in case of Mario Kart 8 and Splatoon actually a shame.
I actually found Nintendo more ambitious on Wii than Wii U; the only first party Wii U games with real ambition were XCX and BOTW, while Wii had Mario Galaxy 1 & 2, Xenoblade, Metroid Prime 3, Twilight Princess...
Wii Sports, Nintendogs, Brain Age, Wii fit is ambition. Bold.
Nintendo picked up the best teams to create the games for the expanded audience. Not to mention getting back to the roots, Virtual Console, ignoring the competition for the red ocean. If this has not been bold, risky and ambitious, I don't know what it can be.
Then the thirds party saw the success of Wii and Ds and decided to create games with low-budget teams with a poor budget and wanted to have the same success as nintendo?