We first heard about Emotion UI -- Huawei's new, custom interface -- back in May, ahead of it's supposed, planned release in June. The Chinese OEM now seems to be about ready to push it out though as of today, as the official site has gone live. Download links are present, but at the moment, only Chinese consumers can get the software.
Notably missing from that list, is the as yet un-released, Ascend D-Quad. It's highly likely that Emotion UI will be coming to the upcoming Huawei flagship too.
Emotion UI promises to bring a (Chinese only) Voice Assistant, cloud services, an "intelligent contact finder," and unique homescreens, customizations and animations. From the images we've seen so far, it looks like it might not be too bad, it's a shame that for now at least, we don't get to play around with it.
Source: Huawei (translated) via Unwired View