CoD, Batman, AC, and even Watch Dogs have bigger budgets than most kid friendly games. Even porting them takes more resources, just look how long Watch Dogs has been delayed. Some 7th gen games have also been delayed or cancelled in spite of the larger userbase.

Given how poor many 3rd party games sell on Wii U, even ports aren't financially worthwhile. If games like CoD, AC, and Batman sold a measly 600K on Wii U then support would have probably continued. Instead they struggled to sell 300K so the support went away.

Zombi U and Bayonetta 2 have not "sold very well." They certainly sold better than most M rated games on Wii U, but that's it. Unfortunately, those games can't rely on other platforms for profit, that makes Wii U exclusives a risk. Bayonetta 2 would be a multi million seller as a multiplat. But that won't happen on Wii U alone.

If Sunset Overdrive sells 700K like Zombi U, it well be deemed a failure. Bayonetta 2 had an opening of 200K in the west, that would also be poor for Sunset Overdrive.

The issue is with this mentality is that Watch Dogs is the most important release on the Wii-U to date. If the threats of a boycott are carried out and/or it sells terribly on release (less than even Wonderful 101), expect the end to come for third party support on the Wii-U.

Your prediction does have some merit. Watch Dogs on Wii-U is late, expensive, last gen graphics, and missing features. However thats not enough to sink a third party game. What can sink a third party game? The sort of Anti-Third Party hostility i've seen from Nintendo fans on forums across the Internet. For example...

The issue is with this mentality is that Watch Dogs is the most important release on the Wii-U to date. If the threats of a boycott are carried out and/or it sells terribly on release (less than even Wonderful 101), expect the end to come for third party support on the Wii-U.

Game companies don't make games just for the fun of it. When they make a game, they need to actually sell copies of it in order to make back the money put into creating it and some profit for themselves on the side. Rather than waste money producing games with extra features for a system that will never leave store shelves, its a more sensible (and easier) solution to simply drop support for that system. As the best way to avoid ending up with several thousand unsellable discs is to not produce them in the first place, or produce them for systems the game will sell on.

Holy shit! This game is going to sell above expectations then! Third Party Saved!

budget is necessary to PRUDUCE a game, not to port. lol for your watch dogs example, what does it have to do with the subject? you know that ubisoft moved the developers behind the wii u port, wich caused the delay, right?

now talk about the support that never existed from most companies. also, no continuing the support as the installed base grows.

you are free to have your definition of sales failure but most people would disagree with those numbers.

Bet you it is 720p AT BEST though.

Nope, you're wrong.

For example, doing a port of Mass Effect 3 or Batman Arkham City was an easier job because they use the Unreal engine. That engine was already ported to the Wii U. However, Watch Dogs uses the Distrupt engine. So the Watch Dogs port is more work than Unreal engine games, because they have to port the new engine and the game.

Namco is using the Unreal engine for the next Tekken because that engine is already on all major platforms. Therefore its less work for them to port that game.

Another example, Titanfall uses the Source engine because they wanted to be able to port it on multiple platforms easily. But that decision was made before it became a Xbox and Windows exclusive.

The Wii U install base is growing, but they primarily just want Nintendo games. Year over year, core software sales didn't see much if any growth even with the the userbase growing.

Wii U fans like yourself set the bar for success lower than 3rd party publishers. You say Zombi U is a successful AAA exclusive, while 3rd parties obviously disagree with you.

You can ask any Wii U gamer if they want only games published by Nintendo. 

Not the case. Not even remotely.

What Wii U owners want are unique quality games. Not halfbacked ports which which are there because the eninge used works on the Wii U too.

Zombii U failed because the reviews weren't that good. It's like the first Red Steel. Right direction but somehow flawed execution.

You can ask any Wii U gamer if they want only games published by Nintendo. 

Not the case. Not even remotely.

What Wii U owners want are unique quality games. Not halfbacked ports which which are there because the eninge used works on the Wii U too.

Zombii U failed because the reviews weren't that good. It's like the first Red Steel. Right direction but somehow flawed execution.

Zombi U and Bayonetta 2 have not "sold very well." They certainly sold better than most M rated games on Wii U, but that's it. Unfortunately, those games can't rely on other platforms for profit, that makes Wii U exclusives a risk. Bayonetta 2 would be a multi million seller as a multiplat. But that won't happen on Wii U alone.

If Sunset Overdrive sells 700K like Zombi U, it well be deemed a failure. Bayonetta 2 had an opening of 200K in the west, that would also be poor for Sunset Overdrive.