Answers

A dev answered yes, but the published event rules only reward the winning side.

• The rewards named so far: the Falx and Talon blueprints, the first "Birds of Prey", go to top-5 players each wipe until launch. It's unclear whether that means the top 5 of the winning faction or of each faction.
• The Leaderboard page lists the current rules.
• This needs clarification from the team; treat it as open until they confirm.

Five levels, from Faction to Masterwork; the Flawed value is still unconfirmed.

• Faction: -15% (dev-confirmed). Quartermaster blueprints and the free starter Seraph come at this quality.
• Flawed: figures differ, -10% or as low as -20%. A blueprint researched to T4 can't roll it.
• Standard: 0%.
• Superior: +10%.
• Masterwork: +20%.