Video game series which need another installment

[KnowledgeBase]

Metroid.

Seriously, Nintendo. Where is Metroid? This is really all I want right now, be it Wii U or 3DS or PC or PS4 or whatever. I'll buy a console just to play it.

For a while now, Nintendo have supposably been working on Metroid Dread, an installment which goes back to the traditional 2D gameplay. However it's been in development for so long it's supposedly been put on hiatus:
http://ign.com/articles/2007/08/27/metro...completion