Those of us who have family members that survived the Holocaust have heard stories of people walking to their deaths, sure that they were about to greet Mashiach.
I agree with Sam2, we have to hope & wait, but it’s not up to us to predict when the Geulah will come. Certainly we have to avoid such discussions around children, who take things vey literally and can be disappointed (or Ch”v worse) when what they expected does not occur.