My list Year one- Crota, atheon,skolas Year 2 Oryx Year 3 Prion over lord Year 4 trials of mercury (Osiris becomes vex) Year 5 nine judgements Year 6 Rasputin corrupt ai Year 7 speakers downfall Year 8 vex demigod Year 9 five races at war Year 10 architects fury / Traveler / Xlyar the timeless final boss Year 11 strangers to light? Perhaps there are many travelers we have to face with new races :)