Info links:

Arena fps games:

New Unreal Tournament
Reflex from CPMA lovers
Reborn from 2GD @ twitter
Project Free Fall
Silverstreak, Cliff Bleszinski's arena shooter
Tesseract
Project Nex unity engine arena fps
Chroma Arena fps from Harmonix Music
Deft Grinders
Telos weird spider arena fps?
Open Tournament
Fragrr
Rekt
Trigger Spree
Ultimate Arena
Quake2World

More Arcade:

Titanfall release: March 11, prod. Respawn Entertainment (the old Infinity Ward) - (released)
Extraction F2P from Splash Damage
Overdose
Survarium from creators of Stalker
C&C Renegade X F2P, 100% free game
Enemy Territory Live fan project
Wolfensten : The new Order Single Player only
Evolve from L4D creators
Project Legion from CCP Games, EvE Online Universe
Bisounours Party
Unvanquished
Killing Floor 2

Realistic, semi-realistic etc.

Insurgency 2 standalone successor of Insurgency mod for HL2 (released)
Enemy Front - WW2 game
Heroes & Generals F2P WW2 game
Project Reality 2 standalone successor of Project Reality mod for BF2
Traction Wars WW2 realism game
Ground Branch Unreal Engine 4 modern combat game
Festung Europa CryEngine WW2 realism game
America's Army: Proving Grounds F2P, 100% free modern combat game
Intruder


Unknown:

Homefront 2
Quake 5
Doom 4
HL3
TF3
L4D3

New, but probably crap games:

Verdun
Instellar Marines
Rekoil
Takedown: red sabre

videos:


Insurgency is standalone game (before HL2 mod). Got it since early alpha, Great progress. Very tactical game and unique gameplay. Interesting game modes. Nice maps. Squd based. Nice feeling, different than CS.

Heroes & Generals, you can play as nazi and ride bicycle = win

Sadly, games like Extraction, AA:PG, Insurgency, H&G... don't have enough of cash for marketing etc. Imo quite good games. Maybe I prefer more 'arcade' but still they are good.