MGS needs to ride off into the sunset. MGS4 was overall a solid ending.
Even though b8 has a hard on for big boss, his side games aren't that good. Ya we all love MGS3, but its different from things like portable ops and peace walker just dont have it. I fear rising won't either.
As for my other choices:
Call of Duty
The Legend of Zelda
Anything Star Wars
Final Fantasy
Any FPS set in WW2
a bunch more would come to my head, but ya.