Thankyou for your kind words. But leaving the franchise right now in the path of irrelevance is not my main goal.

I could make a point about how there's the whole Rental system that completely changes how the Zelda games can be played, and that this small change alone differentiates more than enough from LttP to be considered just a B-tier redo, but I'm gonna leave that point be. There's still no real correlation between Zelda fans and Metroid fans outside of the fact that they're both subsets of Nintendo fans. Zelda fanatics overpurchasing everything Zelda is unrelated to Nintendo's handling of the Metroid franchise. Nothing makes that point clearer than Nintendo making unrequested spinoffs of both Zelda and Metroid coming in the next year. 

Here's a surprising fact: Different teams can work on the same series.

"You mean that one team making a spinoff does not effect the mainline series in any way?"

Yes.

Here's another surprising fact: The same person can work on multiple unreleased games without effecting the release.

"You mean it is possible that the remaining work to be done on the mainline entry cannot be done by some of the workers so they might as well be making another game?"

Yes, it is possible.

Dragon Quest Heroes is selling better than HW in Japan because the Warriors fanbase is actually on PS (and is big on those systems) over there and yes of course there is some growth thanks to DQ but it's not even in the same league to the boost that Hyrule Warriors got thanks to being Zelda. There is one other Warriors game on Wii U, know what it sold in the west? About 50k units. How about 3DS? The one Warriors game that came to the west sold about 160k,the publisher didn't even bother bringing its successors to the west. On Wii the highest was 110k. And here comes Hyrule Warriors and sells 760k in the west.

Try and give me even one example of a crossover like this where a franchise that people initially didn't give a shit about got a boost like this because it was crossed with a popular franchise. I love Persona and especially Persona 4 but I'm not going out to buy a freaking dance game because it has the Persona 4 characters in it.

Oh and I don't know what you're getting at with your last sentence, but be my guest.

Most Zelda fans supports remakes an spin-offs, and they look happy. Metroid fans should me happy too with the new Federation Force.

That's what I have said in another threads. 4 years and a team can't make a single game is proof of mismanagement. Anyway, that's not the point of the thread. There's no confirmation of a Metroid mainline game and the only thing we know about a Prime iteration is that they haven't even started one. The only thing we have as a Metroid fan is this unrequested spin-off.

If you look at the OP, I pointed that this gen Nintendo is going to have released 8 games derivated from the franchise. Something unprecedent. And not only that, Link amiibo is by far the most popular (way above Mario) and Mario Kart got for the first time ever a The Legend of Zelda DLC. It's pretty clear how important is the franchise for NIntendo this gen, even to the point of releasing 2 Zelda games in the same year.

Meanwhile, I as a Zelda fan keep buying everything they do, no matter if this is good or not. Metroid and Zelda fanbase is similar because games are very polished and comes with one or two iterations during the gen.

This time, there are 8 Zelda games (most of them succesful) and for Metroid a simple spin-off. Why to put effort while Zelda fans has showed us there's no need?

I don't expect many to understand this, as many don't want to understand many other statements said before. But I'll be patient and see how is people going to react next year when we have an overload of Zeldas.

Triforce heroes using the same assets also does not mean it's a lazy and/or remade game. It's clearly had a lot of effort put into it, and it's still a new game. Majoras mask, Oracles used the same assets but were clearly different/ new games. Four swords is also a spin off that's been established since the gba days and triforce heroes is a spiritual successor to that. So I wouldn't include that in here, it's basically a new entry in the series IMO. 

/double post

I understand part of your frustrations, but you have to be patient as well, maybe we will only get Zelda U next year, maybe they are doing a main Metroid title, we don't know that, all we can do is wait and see what happens next year.