Probably they will choose a free-agent, who can Stand-In for Olof. Who will support, who will die for the team, not an IGL, who can literally change a whole team (you have seen Astralis without Gla1ve), so probably not ALEX, nor Lekr0. I honestly have no idea who. Free agent, riflers, only Scream comes to mind, but that would be pretty ridiculous. Anyways, basically I don't see an IGL joining as a stand-in
This is just my opinion on this, I am not a FaZe manager or something.