I would have wanted for 4th edition to be a far more collaborative effort. I think WOTC missed an amazing chance to finally bring the fans/customers/users right into the design. Instead of ideas from a few designers and playtesters, we could have the creative input from thousands of DMs and players. Now, I realize that it could have turned into a hopeless mess, but it would have been extremely interesting and so much fun to try. In the end we could have had an edition that everyone had a little connection too. "yeah, i voted for that race to be in." "hey, theres the bad edit I found." "wow, there's my house rule really improved the turning mechanic." Even though all the rules would have been known, would anyone have not bought it?