We've discussed this at i58, the idea of in-game items for monetary support is excellent, but so far it's never been anything more than an idea.
When you look at DOTA 2, they add brand items, those are created by the community then accepted by Valve.
You can't ask them to do something if you don't have value to offer them.
Those items should be a community initiative. We should start a few discussions of what these items should be and hopefully people start implementing them, and present them to the community.
(Sorry if this was established before)'
EDIT: The compendium idea represents fairly well how I'd like to cover future events online (if we're talking about a polished website providing in-depth stats automatically, alongside highlights, STV demos, VOD links, etc).