Prediction - The Witcher 3 Will Sell at Least 10 Million Copies!

[S.T.A.G.E.]

It would need a miracle. The skillset that the witcher demands even for an action/rpg is too much for most people. I'd say 4 million at best. The Witcher is Demon Souls-Lite in terms of thinking pattern required for success in that game. It also has a very engrossing story with multiple endings.