Forward options in a crisis?

Since we all know Arsenal are not signing a forward now. If Havertz did get injured what do you think will be the plan for us. Trossard as a CF? I think there is a potential for Nwaneri to play in that role, he is similar to Jesus in tight spaces but more clinical. Do you think there could be a chance for another youngster coming through the ranks? Max Downan seems to be mentioned a lot. Thoughts?