Here is the full list of all 49 Dynasty Warriors Next trophies - there are 38 bronze, 7 silver, 3 gold and 1 platinum.
Formed a marriage pact with all of the officers.
Cleared the Conquest Mode a total of 50 times.
Obtained all of the available Officer Cards.
Formed a sworn oath with all of the officers.
Obtained all of the available Edit Character parts.
Obtained all of the available weapons.
Obtained all of the available armor.
Successfully completed all of the Sudden Encounters with the best possible rating.
Successfully completed all of the Sudden Encounters.
Defeated more than 100,000 enemies.
Cleared the Conquest Mode a total of 5 times.
Earned 1,000,000 Exp.
Completed a five forces map in Conquest Mode.
Completed a four forces map in Conquest Mode.
Created 10 Edit Characters.
Completed a three forces map in Conquest Mode.
Formed a marriage pact with another officer.
Formed a sworn oath with another officer.
Achieved the worst possible Governance Rating.
Completed a battle in either Campaign Mode or Conquest Mode without taking any damage.
Defeated 3,000 enemies in one battle.
Completed a two forces map in Conquest Mode.
Cleared the stage, "An Endless Quest."
Cleared all of the stages in the game.
Cleared the stage, "A Land United."
Viewed all of the movies in the game.
Cleared the stage, "A Man of Virtue."
Achieved the best possible Governance Rating.
Earned 500,000 Exp.
Cleared the stage, "The Tiger's Advance."
Cleared the stage, "Quiet Ambition."
Cleared the stage, "The Kingdom in Three."
Cleared the stage, "Battle of Chibi."
Cleared the stage, "The Three Visits."
Completed Steeplechase, Bastion, Marksman and Calligrapher within the Gala Mode.
Took a picture using the Musou Snapshot feature of the Gala Mode.
Earned 100,000 Exp.
Cleared the stage, "The Struggle for Power."
Obtained all of the available orbs.
Cleared the stage, "Conqueror of Jiangdong."
Cleared the stage, "Anti-Dong Zhuo Coalition."
Defeated Lu Bu in the Campaign Mode.
Cleared the stage, "Yellow Turban Rebellion."
Defeated 1,000 enemies in one battle.
Completed a 500 hit combo.
Created a save data file.
Obtained all trophies.
Completed all of the battles within the Coalition Mode.
Obtained all of the available growth items.