UPDATE: The new YouTube One-Channel design is now live for users to opt-in to. YouTube's new channel design is rolling out, while brands and partners will be able to access different perks on top of the new design, dubbed One Channel. One Channel is the term being used for having a uniform look to your channel site across all devices in addition to a couple of other nifty features. The new channel design, which we've discussed a few times in the past month, was open to only a few creators at first, but now more and more have started to transition. As always, brands/businesses will have extra perks like widgets to add to the new channel design.
New Channel Design Becoming A Reality
It doesn't look like everybody has it yet, as the One Channel site is still saying the changes are "coming soon" and that you can get prepared for it in the meantime.
Some features of One Channel:
1. Conformed layout across all screens. Now, your particular branding and look can be the same across all devices. That's neat.
2. Sections. The ability to create playlists of any type that you want without having to create sub-channels or pages. You can control how viewers see it when they visit.
3. Channel Trailer. The much-discussed channel trailer that allows creators to have a "welcome" video for non-subscribers that only they can see when they visit your channel.
4. Associated Channels Connection. You will now be able to link to your other relevant channels straight from the home page. Intel is using this One Channel design and has this feature on it:
It looks like this is becoming a reality for most partners/businesses, and it can't be too far away for everyone. Learn more at the One Channel page, which has all the new features on display and shows several examples of who is already in on the new design, and the AdWords Agency Blog.