Pretty much as evilpig said. Motivations should be player driven.
I can't see what can be done to WDS, I'm not even sure what it's intended to achieve.
The standard Events have their good points in as much as to do impact on player, outfit and empire behaviour, but because the end result is more XP (sometimes a lot more) and because more XP mean more certs and more certs equal more power then they have tended to destabilise populations.
An ideal ps2 would have neither Events nor WDS but rather something else and we know what that 'something else' is.
__________________
|