In order to remaster a game like Xenoblade you would have to play test the entire game and a game that span over 70 hours this is problematic. 

You do understand that the install base on WiiU is much much smaller than Wii. Xenoblade HD would flop base on the current install base. It's a teen rated game that caters to RPG fans. The target audience that own a WiiU probably already own the Wii version. 

In order for Xenoblade Chronicles X to suceed it need to build up expectation and customers interest. Xenoblade HD would actual work against Xenoblade Chronicles X, it's such a long game that after playing Xenoblade HD it would create genre fatigue. Why would anyone want 120-140hours of RPG gaming, most 10 hours game don't ever get finish let alone large game like Xenoblade.

What makes more sense to grow the Xenoblade brand??? Xenoblade HD or Xenoblade 3DS? Nintendo has already made that choice. Xenoblade 3ds is meant to grow the market and interest in Xenoblade. 3ds will soon have a 50 million install base that's much better then the small WiiU base.

Yeah, and you wouldn't have to play and test the game on 3DS? lol Again, it is easier to port to the Wii U because it shares the same architecture with the 3DS. Just look how fast Windwaker HD took to make (6 months) and that is a 25 hour game.

As for sales, Nintendo seems to not have a concern about Xenoblade X releasing on the Wii U. Since the most expensive parts of game development are resource development and advertisement, the costs of an HD remake are minimal, as both those things are already completed. The targetted audience that bought Xenoblade on Wii are the ones who bought the Wii U. It was the ones who didn't buy Xenoblade who didn't buy the Wii U. So I don't think it will flop as much as you think. You forgot that Xenoblade is releasing for the NEW 3DS, not the 3DS. But question: how many people will have a new 3DS upon Xenoblade 3D's release? I can assure you it will be fewer than the Wii U's install base. 

You do know that Xenoblade can still be played on WiiU.... the Wii version. 

Well I admit that NEW 3DS install based will be smaller except that Xenoblade will be an "exclusive game for the new console". The handheld market open up a new group of customer. The sales of Bravely default shows interest in RPG even in North america. 

Xenoblade HD would of made sense a year or two ago.... not in 2015. Let's get excited about Xenoblade Chronicles X instead. 

But that really wouldn't make any sense because Spirit Tracks is a sequel to Skyward Sword.

Oh, I thought it was more like a sequel far into the future. But whatever, I was just taking the extra effort to bother you there.

Yeah, skipping out on Xenoblade X because you didn't play the first game doesn't make any sense.

Yes, but because of supply issues many Wii owners who wanted to buy the game were not able to recieve a copy, and for those who do have copies a version rendered at 1080p with enhanced shading and lighting effects certaiinly would sell. 

The New 3DS is not a new console though. It's just a revision, and a poor one at that. Bravely Default is a handheld friendly JRPG (you can play the game in increments.) Xenoblade on the otherhand is not. 

As for myself. I don't even have a Wii U yet, and I have a 3DS XL that I don't plan to upgrade. I purchased my copy of Xenoblade for the Wii at $70,  and I played it halfway through on my Wii and halfway through on Dolphin (@ 1080p.) So honestly I don't care if the game came to Wii U or not. I just wanted to point out in my original reply that it wouldn't be really hard to make an HD version, especially after seeing what the dolphin community has done, and what Nintendo has done with Windwaker HD. I just wanted to fact-check you on this sentence alone, "such a massive game would take forever to remaster."