Do you mean the top secret project
http://api.addons.videolan.org ?
There could be the link in the addons manager in VLC. Then there should be this link in the header of old place at addons.videolan.org and a link to the old place could be placed in the header of the new place. All websites should be connected.
Then there could be a pinned topic somewhere on the forum to introduce the new site api.addons.videolan.org, the .vlp package, instructions, a place to report issues, ask questions, discuss related stuff and the direct link to the forum topic should be mentioned at api.addons.videolan.org.