Sorcerer enhancements (history)

Level 1

 * Energy of the Dragonblooded I: Grants 30 extra spellpoints
 * Combustion I: Grants a 20% increase to the damage of your 1st level fire spells
 * Glaciation I: Grants a 20% increase to the damage of your 1st level ice spells
 * Magnetism I: Grants a 20% increase to the damage of your 1st level electricity spells
 * Reconstruction I: Grants a 20% increase to the power of your 1st level repair spells
 * Skill Interaction I: Grants +3 bonus to Bluff and Haggle skills
 * Skill Tactics I: Grants +3 bonus to Concentration and Diplomacy skills

Level 2

 * Energy of the Dragonblooded II: Grants 45 extra spellpoints
 * Improved Combustion I: Grants a 30% increase to the damage of your 1st level fire spells
 * Improved Glaciation I: Grants a 30% increase to the damage of your 1st level ice spells
 * Improved Magnetism I: Grants a 30% increase to the damage of your 1st level electricity spells
 * Sorcerer's Charisma I: +1 Charisma

Level 3

 * Energy of the Dragonblooded III: Grants 60 extra spellpoints
 * Greater Combustion I: Grants a 40% increase to the damage of your 1st level fire spells
 * Greater Glaciation I: Grants a 40% increase to the damage of your 1st level ice spells
 * Greater Magnetism I: Grants a 40% increase to the damage of your 1st level electricity spells
 * Skill Interaction II: Grants +4 bonus to Bluff and Haggle skills
 * Skill Tactics II: Grants +4 bonus to Concentration and Diplomacy skills

Level 4

 * Energy of the Dragonblooded IV: Grants 75 extra spellpoints
 * Combustion II: Grants a 20% increase to the damage of your 2nd level and lower fire spells
 * Glaciation II: Grants a 20% increase to the damage of your 2nd level ice spells
 * Magnetism II: Grants a 20% increase to the damage of your 2nd level electricity spells
 * Reconstruction II: Grants a 20% increase to the power of your 2nd level repair spells
 * Improved Empower Spell I: Reduces the spellpoint cost for empower spell metamagic by -10%

Level 5

 * Energy of the Dragonblooded V: Grants 90 extra spellpoints
 * Skill Interaction III: Grants +5 bonus to Bluff and Haggle skills
 * Skill Tactics III: Grants +5 bonus to Concentration and Diplomacy skills
 * Sorcerer's Charisma II: +2 Charisma

Level 6

 * Energy of the Dragonblooded VI: Grants 105 extra spellpoints

Level 7

 * Energy of the Dragonblooded VII: Grants 120 extra spellpoints
 * Skill Interaction IV: Grants +6 bonus to Bluff and Haggle skills
 * Skill Tactics IV: Grants +6 bonus to Concentration and Diplomacy skills

Level 8

 * Energy of the Dragonblooded VIII: Grants 135 extra spellpoints
 * Sorcerer's Charisma III: +3 Charisma

Level 9

 * Energy of the Dragonblooded IX: Grants 150 extra spellpoints
 * Skill Interaction V: Grants +7 bonus to Bluff and Haggle skills
 * Skill Tactics V: Grants +7 bonus to Concentration and Diplomacy skills

Level 10

 * Energy of the Dragonblooded X: Grants 165 extra spellpoints

Unconfirmed
From dugman on the DDO forums: "Sorcerers have the same fire, electricity, cold and repair enhancements that wizards do, although I think they get them a level later (since sorcerers get their higher level spells a level later than wizards)".

The following enhancements are confirmed to exist for sorcerers, but the level at which they are obtained is not confirmed yet:
 * Improved Empower I and II - confirming both are in for sorcerers.

The following enhancements appear in the game data files but their implementation has not been confirmed yet:
 * Improved Heighten I, II and III