The XBox One is still sitting at that 5 million unit mark though, as opposed to the Wii U having sold over 6 million units, and PS4 reigns supreme at over 7 million units. As far as an RE5 port, they scrapped the idea, however, if you search this site enough, years ago I posted a thread with official Capcom sources saying they were thinking about doing so. I really don't wanna go through the hassle of finding them again, so if you can find that thread in the RE5 section, you may get your answer. And you're right, RE fans have always been top notch. That's why RE4, RE0, and REmake were Gamecube exclusives, even though the XBox had a better Graphics processor than the GC or PS2. The Gamecube game in SECOND in that department.The Wii U has been out for a while now and is still doing poorly. The Xbox One is outperforming the Wii U. They've already sold 5 million in less time. As of December, the Wii U hasn't even reached 5 million. I also don't get where you're getting the idea that they've considered porting Resident Evil 5 to the Wii when they have denied the rumors, and even downright said that the Wii or PS2 couldn't handle the title screen. Resident Evil games, love or hate em have always been top notch. There's no way they're wasting resources on a lesser version for a struggling console, unless the game isn't taking advantage of the current systems and all look and perform the same all across the board. Though, I don't see that happening.
At the end of the day, I'm not saying it WILL be on Wii U. Odds are it won't, however, of EVERYTHING in this "Rumor" that's definitely not the one to knit pick at is all I'm getting at.