banners Allow me to introduce myself, I'm AlternatePlanetArchivesandAnimation, I'm a YouTuber who uploads deleted videos, animations TV recordings, VHS tapes, cartoon episodes, etc.
I'm also an animator and artist.

Annotations You guys should add annotations!

Expansions to the API There are a lot of requests to create mobile apps and create apps for other devices, and I think there's a very simple fix to this. Expansions to the API system would let people just design it for you, instead of the need of an official app.
The expansions would include the ability to create a log in token, which could then be used to do things like receive all notifications, reply, vote on videos, send private messages, and alter your profile.
The other expansions would include the ability to receive comments, to page through searches, and so on.
Essentially, I'm asking for the entire backend to be accessible with secure JS. This is certainly a difficult task, but I think it's worth it.

Multi Languages There should be a section where people can make different languages for vidlii.

Cosmic Panda should be more customizable there should be a settings to use the later cosmic panda header (https://tctechcrunch2011.files.wordpress.com/2011/07/cosmicpanda1.png)

and there should be a template setting
http://ignitesma.s3.amazonaws.com/images/KaileeB/CosmicPandaRedesign-ChannelOptions.jpg

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there should be a setting for different homepage layouts and search bar layouts.

such as the early cosmic panda one https://www.cravingtech.com/blog/wp-content/uploads/2011/07/Google-Cosmic-Panda.jpg

and more video player styles. such as the cosmic panda one.