Yeap, the regular Wireless display approaches will be like everyone else. ^_^
If Sony goes there, then the objective is to be as compatible as everyone else. It can probably be done with a dock.
I assume the Gaikai approach would be more optimized for gaming. It may require more than a dock. But they may not be able to pull it off.
Incidentally, Kutaragi is now an external director of Marvelous AQL.