Senegal, Morocco and Ghana still have a chance to pass. Morocco > Ghana > Senegal. It would be awful to not see one of them in the next stage..
Senegal need to win against Ecuador in order to progress to the PQF stage. At this point, it looks difficult. And for Cameroon, they need to defeat Brazil which is outright impossible. Tunisia is more or less out of the world cup. Morocco and Ghana are the two CAF teams who have the maximum chances of qualifying to the next round. Morocco already have 4 points from 2 matches, and they just need a draw against Canada. Ghana also needs a draw against Uruguay since they already have 3 points from 2 matches.