It's a weird comment because I'm not sure if something's taken out of context or something. Though I don't know how long ports are made anyway

Zelda BotW take 1 year
Snake pass running within a week

That's entirely unbelievable. If the target machine looks basically similar (has a graphic card and enough RAM) and the used engine is available (Unity or Unreal for instance), then the basic stuff of running the program and remap the controls should take two or three programmers about a week. Then starts the hard part. Differences of the machines may lead to glitches and bugs. More so if the game is developed to the limits of the initial machine (a reason why many indies are more easy to port) - the original finetuning took in that case a lot of time, and this finetuning must happen again. Basically I would think porting for the most part needs a team size and the time of testing and finetuning the game on the original platform. That should be two or three months for a big blockbuster. Naturally you can put this task to a single person, which would be a in over his or her head. That could take easily one year or forever, but that is not sane to begin with. Insofar Miyamotos comment doesn't make much sense.

And the team size. Give a single person the task to port GTA V, and it may well take a decade.

Can't say that this is entirely unexpected.
Some game engines don't have native support for ARM... And who knows what the Switch's API/Driver/OS maturity is like, that's going to prolong things.

It takes a couple of days to port an indie game from PC to Xbox One, Microsoft being able to share Direct X/Windows Kernel between platforms is a massive advantage in this aspect.

Majority of games are developed on PC.
This is why at things like E3, Microsoft, Sony and Nintendo use the PC to "demo" their console games, even console exclusive games.
Games are thus not really "ported" to the PC in the same sense as a PC game being ported to a console.

Where "extra time" to work on PC games come into it is because supporting PC-centric features can take time (Eyefinity, Surround Vision, Crossfire, SLI, Higher Resolutions, Framerates, better Texturing, Anti-Aliasing, Texture Filtering, HBAO+ etc' etc'), GUI sometimes needs an overhaul.
Plus, if you look at a game like overwatch... The PC version has COMPLETELY different game balancing to the console versions thanks to the Mouse and Keyboard.

It sounds semi bad to me.

I suspect with the XB1 or PS4, it ll take alot less time than that.

That seems like a long time, any idea how long it would take to port one to the Wii U?

Wrong thread

sure not worth porting then for that system

Moderated - Miguel

This is not very good, ports are reasonably costly then. This and they talking about the possibility of a 3DS successor soon, are they trying to make people afraid of buying the Switch? Really, it's 1-month to go, preorders are good. There isn't a worse time to say stuff like that. Their PR department is letting these things happen. That's insane.