As for what's under the hood? That's not so certain, although the current talk is that you might find the same eight-core Exynos 7420 chip that you get in the regular S6 Edge. If so, that'll make the Edge+ little more than an upscaled version of the phone you already know. It'd be a challenger to Apple's iPhone 6 Plus and its eventual sequel, rather than an upgraded device à la HTC's One M9+. Not that we're necessarily complaining, especially as FCC filings suggest that the Edge+ is coming to major US carriers. Historically, Samsung has only offered one giant high-end phone at a time -- if this leak is accurate, you'd finally have the choice of additional big-screened Sammys that aren't big steps down.