To add to that, my personal wish list for tutorials would be:
FundamentalsBasic Flight Maneuvers (when to use coordinated/uncoordinated turns, proper rolls, barrel roll variations)
How to Retreat in a Losing Battle (alternatively, How to Get Out of Common Dangerous Situations)
How to Dive Bomb (or Do Ground Attack)
SA in the MA
How to Capture a Base (all steps explained)
How to Defend a Base
How to Attack a Carrier
Gunnery Course
How to Fly in Formation (with Different Formation Types)
How to Attack Bombers (although there already is
a good video about this by 33vortex)
AdvancedRolling Scissors Fighting
Conserving Energy in a Fight
Wingman Tactics (such topics as how to communicate, how to stay close to each other during a fight, how to cooperate as a pair with the flight/squadron, how to overwhelm an opponent's SA, etc.)
How to Fight Multiple Opponents
How to Organize/Lead Pickup Missions (including different types, such as a fighter sweep, CAP, base capture, etc.)
Psychology of a Dogfight
How to Race in a WWII Bird (for eXtreme Racing League)