These are the examples we have of {'e' Xlu'}. The first two are from TKW and the third is from Klingon Monopoly.
yay chavlu' 'e' bajnISlu'. - The victory must be earned by the one who achieves it.
yInlu'taH 'e' bajnISlu'. - The survival must be earned by the one who survives.
DIvI' rojmab qep ghanglu' 'e' nIDlu', 'ach taH qep. - One tries to end the peace talks. (This can't be interpreted as someone trying to get someone else to end the peace talks. The trier is the ender.)
What the latest information says is that these sentences are part of a larger pattern that includes these:
batlhHa' vanglu'taHvIS quv chavbe'lu'. - The one who acts dishonourably is the one who does not achieve honour.
Heghlu'DI' mobbe'lu'chugh QaQqu' Hegh wanI'. - The one who dies is the one who is not alone.
noH QapmeH wo' Qaw'lu'chugh yay chavbe'lu' 'ej wo' choqmeH may' DoHlu'chugh lujbe'lu'. - The one who destroys an empire is the one who doesn't achieve victory, the one who retreats is the one who doesn't lose.
pujwI' HIvlu'chugh quvbe'lu'. - If one attacks the weak, the same one does not achieve honour.
'oy'be'lu'chugh Qapbe'lu'. - One does not succeed if the same one does not experience pain.