I needed to get my juices flowing this morning, so I mocked up some YouTube concepts; thought I'd share because I kinda like them! The design is centered around highlighting professional content and pushing purchase/rental content sourced from Google Play.
I added a Podcasts area as its own destination because it really deserves one, as it also helps discoverability.
Speaking of discoverability, I added filters to see what your connections on FB, G+ and Twitter are sharing or watching, as well as the ability to filter new videos by other who live in your city.
The right column is dedicated ad space for premium advertisers.
A YouTube 100 was added as another way to see what's trending acros all categories.
The Users hub at top is where all non-podcast user-generated content will now go. I find it important to keep amateur and professional content easily identifiable through this separation.
I added a Random button near the top left. Part of the fun of YouTube is randomly discovering a great video. Ideally, you could keep clicking the button for hours just trying to find something cool.
The I.D. badge at the top right would contain a menu to access a queue, the user profile, purchase/rental history and the user's personal channel.
There are a number of other noticable changes as well I won't detail, but that's the basic notes I have. What do you think?