Klopp seems to have hinted that they will play a similar team to the last round, which despite containing 5 kids also included a number of 1st team squad players such as Milner, Oxlade, Gomez, Keita, and Origi. These players would then fly out to Qatar and be available for the 2nd of the two matches over there.
So the prospect of us facing a team made up entirely of U18s may actually be wishful thinking.