WOTC: In short, we want a game that is as simple or complex as you please, its action focused on combat, intrigue, and exploration as you desire. We want a game that is unmistakably D&D, but one that can easily become your D&D, the game that you want to run and play.
Me: Take the Holmes Basic Rulebook, clean it up a bit to make it fully compatible with AD&D 1E, expand it to 10 character levels but keep it under 50 pages. There's your 5th edition "Core". Sell it in a box with an awesome module at a price that will place one under every Christmas tree in the land. Then re-release a streamlined AD&D 1E as your 5E optional "Expansion". Done.