They already put in pve rewards. They've removed just about every other suggestion you had.
Morale is gone, the pvp stat on gear.
PvP only actions were extremely condensed.
The Feast is designed to be as balanced as possible (lol), so switching team compositions would lead to bad matchmaking.
Astragolos is indeed dead, but the next Rival Wings mode will soon be upon us.

They'll never look at long term goals, that isn't how this game is directed. They want 'pick up and play'. This is true for both pvp and pve.