Have an alternative way to relocate citizens without being completely oppressive; pay them to move.
Of course; not as progressive as no relocation at all and can have it's own set of problems.
Pop demands more or get's angry
Pop refuses (and moves back? Possible to save tile location or planet?)
Other events can happen when pop is relocated normally
Maybe get's "lost" underway or decides to book it? Related to #38
General unrest because handled badly or unwilling?
Have an alternative way to relocate citizens without being completely oppressive; pay them to move. Of course; not as progressive as no relocation at all and can have it's own set of problems.
Other events can happen when pop is relocated normally