IC: D&D Semi-Sandbox
I recently proposed this to my F2F players, and thought I'd try it here as well. The premise of the game would be intentionally left blank, with the PHB being the starting point for the game.
The players, as part of the RTJ process, would propose three things they always wanted to experience with a D&D character.
Options could be virtually anything, examples including become pirates, rule a kingdom, be a merchant, own an island, basically anything that excludes becoming a god.
I would then try to build a party based on those submissions, so that the game is geared to deliver the varying experiences along the way, integrating as much of the wishlist as is reasonable.
Some things to bear in mind, however, before expressing your interest. Magical items are scarce, so be grateful if you find one. And treasure collecting to me is not the point of the game, so don't expect to accumulate tons of gold in a short period of time.