I took time to write down all possible combo i could see in the patch notes; along with the TP and recast timer of each ability used in the combo. Hope this help people prepare for the patch!
Pugilist
Pummel → Aura Pulse = Chance to inflict Slow
Pummel → Concussive Blow = Increased Damage
Pummel → Concussive Blow → Simian Thrust = Increased Damage
Pounce → Sucker Punch = Chance to increase absorb MP effect
Pounce → Demolish = Dispels an effect
Pounce → Demolish → Howling Fist = Increased Damage
Pummel: TP: 1000 / Recast Time: 10sec.
Pounce: TP: 1500 / Recast Time: 20sec.
Concussive Blow: TP: 1500 / Recast Time: 30sec.
Sucker Punch: TP: 1000 / Recast Time: 15sec.
Demolish: TP: 1500 / Recast Time: 30sec.
Aura Pulse: TP: 1500 / Recast Time: 40sec.
Howling Fist: TP: 3000 / Recast Time: 80sec.
Simian Thrust: TP: 2000 / Recast Time: 80sec.
Gladiator
Fast Blade → Flat Blade = Increased enmity
Fast Blade → Savage Blade = Increased damage
Fast Blade → Savage Blade → Goring Blade = Increased Bleed damage
Riot Blade → Rage of Halone = Increased accuracy
Fast Blade: TP: 1000 / Recast Time: 10sec.
Savage Blade: TP: 1000 / Recast Time: 30sec.
Flat Blade: TP: 1500 / Recast Time: 10sec.
Riot Blade: TP: 2000 / Recast Time: 80sec.
Rage of Halone: TP: 1500 / Recast Time: 20sec.
Goring Blade: TP: 3000 / Recast Time: 80sec.
Marauder
Heavy Swing → Skull Sunder = Increased enmity
Storm's Path → Whirlwind = consume TP to increase damage when you are below 50% HP
Brutal Swing → Maim = Increased accuracy
Brutal Swing → Maim → Godsbane = Increased critical rate
Heavy Swing: TP: 1000 / Recast Time: 10sec.
Brutal Swing: TP: 1500 / Recast Time: 20sec.
Skull Sunder: TP: 1500 / Recast Time: 30sec.
Maim: TP: 1500 / Recast Time: 30sec.
Storm's Path: TP: 1500 / Recast Time: 30sec.
Whirlwind: TP: 3000 / Recast Time: 80sec.
Godsbane: TP: 3000 / Recast Time: 60sec.
Archer
Heavy Shot → Quick Nock = Fivefold attack and coversion to single target
Heavy Shot → Leaden Arrow = Increased heavy duration
Heavy Shot → Leaden Arrow → Wide Volley = Increased accuracy
Piercing Arrow → Shadowbind = Increased bind duration
Piercing Arrow → Gloom Arrow = Chance to inflict blind
Piercing Arrow → Gloom Arrow → Bloodletter = Inflicts additional damage when bleed fades
Heavy Shot: TP: 1000 / Recast Time: 10sec.
Piercing Arrow: TP: 1000 / Recast Time: 20sec.
Leaden Arrow: TP: 1500 / Recast Time: 30sec.
Shadowbind:TP: 250 / Recast Time: 40sec.
Gloom Arrow: TP: 1000 / Recast Time: 10sec.
Quick Nock: TP: 1000 / Recast Time: 180sec.
Bloodletter: TP: 1500 / Recast Time: 80sec.
Wide Volley: TP: 2000 / Recast Time: 80sec.
Lancer
Vorpal Thrust → Impulse Drive = Increased critical rate
Vorpal Thrust → Impulse Drive → Chaos Thrust = Increased critical rate
True Thrust → Heavy Thrust = Increased stun duration
True Thrust → Leg Sweep = chance to inflicts stun
True Thrust → Leg Sweep → Doom Spike = Increased accuracy
True Thrust: TP: 1000 / Recast Time: 10sec.
Vorpal Thrust: TP: 1500 / Recast Time: 20sec.
Heavy Thrust: TP: 1500 / Recast Time: 20sec.
Impulse Drive: TP: 1500 / Recast Time: 30sec.
Leg Sweep: TP: 1000 / Recast Time: 30sec.
Doom Spike: TP: 3000 / Recast Time: 60sec.
Chaos Thrust: TP: 3000 / Recast Time: 80sec.
Conjurer
Stone → Stonera = Increased damage and conversion to single target
Aero → Aerora = Increased accuracy and conversion to single target
Stone: Cast Time: 2sec. / Recast Time: 6sec.
Aero: Cast Time: 3sec. / Recast Time: 6sec.
Stonera: Cast Time: 3sec. / Recast Time: 30sec.
Aerora: Cast Time: 4sec. / Recast Time: 20sec.
Thaumaturge
Thunder → Thundara = Increased damage and reduced recast time when Stun is not inflicted
Thunder → Thundara → Thundaga = Increased critical damage
Fire → Fira = Reduced cast time
Fire → Fira → Firaga = Reduced cast time
Thunder: Cast Time: 2sec. / Recast Time: 6sec.
Fire: Cast Time: 3sec. / Recast Time: 8sec.
Thundara: was not listed / Recast Time: 30sec.
Fira: Cast Time: 5sec. / Recast Time: 16sec.
Thundaga: Cast Time: 5sec. / Recast Time: 45sec.
Firaga: Cast Time: 8sec. / Recast Time: 7sec.