I haven't heard of anything quite like that.
TGC might be piloting a scheme where they will publish your game (if they are happy with it) and you get a share of the profit. The good side of this is you wouldn't need anything more than a Tier 1 copy of your code to get published on all platforms. Some people might not be happy with the percentage of the profits they might get but then you aren't risking anything publishing through a third party in this way.
It is far from ready and may never happen (little more than rumour at the moment) but it's the closest I've heard to what you're looking for.
EDIT: Another way of looking at it is I'd rather have 50% of
something than 70% of
nothing...