If some 3rd parties are still going to make excuses I would hope Nintendo would just say okay and focus on those that aren't going to act like that. Consolidate what relationships they can with Japanese studios. Make sure things are okay with EA, Activision, Ubisoft. Just make sure the system can run Epic's and Crytek's engines well. Can't force some companies to make games for the system or even port their games. The best Nintendo can do is make them look foolish and let their anti-Nintendo bias shine for everyone to see. If there are no technical and financial reasons for not putting games on the system when the title is multiplatform I think that is the only thing left and you can't force that to go away.