No FD NO FRS - yes the yield will go up (in fact it will rocket and be the best this company has seen for a long long time) but its not a miracle.
Flying longhaul pushes the yield down as its a lot of miles, likewise a lot of shorthaul flying will push the yield up as it short distances.
Since June, GF has axed DUB, JNB, SIN, SYD and JKT - all longhaul routes.
So if you take a lot of longhaul flying out, your yield will naturally go up.
The only way we will know if this summer has been a success (which we all hope for) is the final revenue figure. It will be down due less flying/seats but if its better than the capacity reduction then its a sure good sign things are moving in the right direction.