Yuji Horii is great at revealing game releases before publishers are ready. I remember when he announced DQ VII and VIII 3DS were coming West long before SE ever made an official announcement. Apparently SE was not happy with him over that one and they were probably mad again when Horii just casually dropped they were looking at an NX version long before we even knew that the NX was the Switch.

As for what version will get ported, after seeing the Digital Foundry CPU and GPU breakdown in another thread, I'm pretty much convinced they will just rework the 3DS version instead of going through the pains of downporting the PS4 version. I know people are trying to say the PS4 version of DQ XI that is still potentially most of a year from release isn't visually impressive (the DQ XI trailer just said "2017" without any specifics), but could anybody legitimately see that running even at 720p on a gimped Wii U? Because so far it's sounding like "gimped Wii U" will define the portable Switch mode.

Like I said in another thread, a port much like what SE did to bring KH: 3D to the PS4 seems very likely in this scenario.

The difference to be honest isn't that large. A port should be possible, DQXI is not pushing the PS4 to its peak, and it's likely running at 1080p on PS4. 

720p (docked) and 480p-540p (undocked) for Switch should be doable with a reduction in some effects. 

That's what I suspected. You are throwing a fit because you want to buy the PS4 version. That's why your arguments make little sense.

I mean, look at this. Apparently the justification for a PS4 version is to invest as much money as possible in its development, rather than making it a reasonable investment to provide a version for PlayStation which has played second fiddle in Japan since quite some time.

Coolio. Dismiss a rational argument because you expect the Switch to be some ideal fantasy of handheld and console brought to fruition.

So far your argument has been "of course they're bringing the PS4 version to Switch because of course." If that seems like a rational argument following understanding of smart game development, more power to you. I guess I'll leave some ideas for you to consider. I don't expect a respectful response back after your last post, so feel free not to quote me further.

1) Why make a PS4 version at all if it was such a waste of budget to begin with? An argument saying the PS4 version will be lesser for the sake of the Switch ultimately makes the PS4 development nonsense. They easily could have gotten away with just making the 3DS version if this was a concern, and I doubt the PS4 version was decided on after an extensive talk with Nintendo about how badly they wanted a pretty version of DQ XI on the Switch.

2) Your argument basically ignores game development practices as a whole. Porting up is common. It's why we have seen so many remasters, and it basically defines multiplats brought to PC. We don't see many AAA games developed for PC first and then ported to weaker consoles later. Instead we see games made for consoles ported to PC. The standard for downporting is relatively small and tends to stay between similar hardware, such as PS4 to Xbox One, where one doesn't have a truly significant advantage over the other. If what we currently know about the Switch is true, some massive, almost unacceptable degrees of downporting may be required to bring DQ XI PS4 to the Switch, particularly when considering handheld mode. Game development trends say this is not a likely move.

3) When already making a handheld version, how does it not make more sense to pretty up that version than to tear down the bigger version? When you could make an HD version of the 3DS game that will still run and look great even in portable mode on the Switch, what benefit is there to bringing a version of the game that will kill portable battery life and potentially feature widely criticized resolution and framerate issues? One approach from the development perspective is safe, while the other carries much more risk.

I'm not blowing smoke here with an unreasonable argument. Worst case for me is that I'm pleasantly surprised to find the PS4 version does actually run acceptably on the Switch. Worst case for the hopefuls is that they have to accept that the Switch really will just be another underpowered Nintendo machine that failed to live up to their expectations. Keep expectations just low enough that you won't be disappointed, and life is better.

Keep in mind though not every Japanese game requires massive graphics.

I'd say Metal Gear Solid V looks better than Dragon Quest XI and that runs on a 250 GFLOP XBox 360. 

Dragon Quest has never been about pushing graphics anyway. They made a PS4 version because they thought/hoped PS4 would revive Japanese console gaming and take things back to the PS2 days ... so far it's failed horribly in that regard. 

That almost never happens (a game's graphics dramatically improving in t-minus 12 months). 

Besides the game is likely not pushing the PS4 very hard for the precise reason that they want to be able to make a Switch port out of it. This isn't Final Fantasy, they are going to have to make the bulk of their money from Japan and Switch is likely going to outsell the PS4 fairly quickly in Japan. 

There's not much motivation to make the game so graphically intense (DQ has never been about graphics anyway) that it can't be run on a Switch.