Considering Pranger's already impressive longevity, the fact that the only "assassin" ever to get close to him did so entirely accidentally, and the matter of Pranger's improved operational intelligence regarding the upcoming incident, the safe money says that the Integrity will not need a new call-sign anytime soon.
Schlock Mercenary readers will no doubt sleep easier knowing that the safety of Colonel Pranger is now all but guaranteed.
Addendum to Note: An actual, definitive guarantee would require the promise of some sort of refund, and that won't be happening regardless of how things turn out. If the word "schlock" or the word "mercenary" led you to believe otherwise, you are invited to take a quick tour of your local dictionary.