4. More Stealth Elements
ValveThe Half-Life series has shaken things up big time when it comes to graphics, narrative, and strong characterisation. Despite this, it's always been an action-packed shooter through-and-through, with little choice when it comes to choice in gameplay. There have been calls for a mix-up in the style of gameplay, to give players more freedom in how they approach the various encounters. In particular, stealth elements that allow Freeman to circumnavigate enemies without facing them head on has been heavily discussed. Considering how anticipated Half-Life 3 is, it seems unlikely that Valve will dish out a straight-forward first-person shooter, no matter how well crafted. FPS hybrids have proven popular in recent years, from Fallout 3 to Mass Effect, and we wouldn't be surprised if Valve take a similar route.