FPS is barely a genre at all. It's a mechanic.
Arguing for a stricter definition of an FPS is silly, because then you're talking about something else entirely from the first-person shootery.
Arguing that there's been no evolution in FPS games is like saying that MMORPGs haven't evolved because the new hotness is yet another fantasy game.
No offense mate but we really did came a long way from Doom,and today's fps games play totally different.
... I take the lives of a few to protect the lives of many. I commit acts of war to preserve the greater peace. I take no joy in killing, but make no mistake; I'll do what needs to be done. Because it's my job. It's my duty. My name is Sam Fisher, and I am a Splinter Cell.
Which simply isn't true. They all share the absolute basics (otherwise they're not FPS games) but they're all clearly different because of the other things they do.
Gameplay developed since Doom
Jumping. Dodging. Sliding. Crouching. Going Prone. Leaning. Vaulting. Climbing. Grappling. Swimming. Diving. Using a secondary fire mode. Using a non-lethal weapon. Using a weapon that isn't direct-fire. Blind-firing. Zooming in. Driving a vehicle. Flying a vehicle. Using a jetpack. Using a fixed emplacement. Puppeteering. Specializing for a role. Killing silently. Laying traps.
Jumping. Sprinting. Dodging. Vaulting. Sliding. Crouching. Going Prone. Leaning. Climbing. Grappling. Swimming. Diving. Leaning. Blind-firing. Switching to appropriate weapons. Hiding behind cover. Flushing you from cover. Using fixed emplacements. Driving vehicles. Flying vehicles. Using jetpacks. Using weapons that obfuscate your view. Using weapons that stun you. Retreating. Reacting to visual and auditory stimuli. Communicating. Working in tandem. Flanking. Not killing you. Killing each other, and not just by mistake. Helping you.
Variegated. Recognizable. Modifiable. Destructible.
And that's in just your dumb plotless shoot-em-ups.
I've probably said it before, but FPS is a stupid genre label really. Call of Duty is always the biggest, most obvious example. But then you get a genre that includes Deus Ex and even Portal in some people's mind, but excludes Gears of War and Space Marine.
What's changed since DOOM?
ARPS unofficial motto - And then we leave. No heroic stands.
Yeah, I was gonna say it's like comparing matchlock guns to todays. You pull the trigger and something goes bang, but it's a very different thing.
There have been new gameplay mechanism being developed for FPS / TPS, but this time game console and arcade game take the lead.
I think this game is not popular in the west, it's not popular here neither, but it did have some popularity in Japan, a Sega's great work called 2 Spicy (link), a TPS in which you use pedals to control movement while light gun to aim and shoot. I am not sure if that gun is a light gun or a motion sensor. I heard that light gun that work on LCD display is not affordable for game console users, but is sometimes used on arcade game. Anyway that technical details is not that relevant, but you will see some innovations in shooter games.
Actually this arcade game runs on x86 PC by Linux. So strictly speaking you can say it's PC gaming, and it is not on Direct X, too!!
Wii used to be new hope for shooter games, but Nintendo is such a jerk towards 3rd party developers. But you all know about the Metroid series on Wii. Sony all introduced their motion sensing gameplay for Killzone 3, too.
Problem of PC gaming is that it is quite difficult to motivate development of new input system, besides of mouse+keyboard, wheel+pedal for driving games, and joysticks for horizontal versus fighting games.
So the argument I see in this thread is:
1. Doom is an FPS.
2. Shootmanbanger 2012 is an FPS.
3. Portal's not an FPS!
4. Nor is Amnesia!
5. Or Mirror's Edge!
6. Or Thief!
7. Therefore FPS' haven't changed what givvvvvvves???
Is this a lament that the core "gameplay" of FPS's has stagnated, or an upholding of that same "gameplay" at the expense of other possibilities?
Cos there are only so many ways to shoot a man bang. The first guy that coded it did pretty much all that needed doing.
The idea behind FPS games is that it is fun to shoot things and hit them. This has been true ever since our forefather outlived that other guy who thought throwing pointy sticks at animals was boring. There is no need for games that tap in to this sensation to "evolve" because it has been fun for 500000 years, and considering how slowly our genome changes, it will be fun for way longer than any of us need to be concerned about.