I can't narrow it down to five, but here's ten that I think will be considered (in no particular order):
Uncharted 4
The Legend of Zelda
Halo 5
Bloodborne
Xenoblade Chronicles X
The Witcher 3
Batman Arkham Knight
No Man's Sky
Hotline Miami 2
Metal Gear Solid V
There's probably more that I am missing, but 2015 has a lot of good games announced so far.