1. Make more Sleeping Dogs sequels
Sure, like what they're doing already with Triad Wars I suppose
Square Enix have definitely been a good publishing brand. To their credit, they aren't resting on their laurels with Eidos, CD and UFG under their wing. Not to mention their stand-in publishing act for games under the Activision and Ubisoft portfolios in Japan. And Enix's manga publishing.
It's easy to forget that Square Enix already does plenty more than just games development.
Easier said than done, but sure, not going to disagree there
3. Introduce a Squaresports brand (compare EA Sports)
lol if you're referring to a 'sports' brand specifically, EA Sports (and other behemoth franchises like the 2K series) have that corner of the market on lockdown. The only serious contender I can think of from Japan is Konami's Pro Evolution Soccer brand, and that's only because it fills a niche for Asian consumers of football with a franchise that established itself 18 years ago.
An attempt by Square Enix just wouldn't be competitive.
4. Cancel All Final Fantasy and Kingdom Hearts projects, they are cancer and must be eradicated.
I'm just going to +1 Carlie's opinion on this matter