Hi Tony,
You will definitely need to wait for the results of the DNA analysis. Even with further information from the blood tests (HbF level?) it will not be clear. Various possibilities include silent carrier, mutation in the delta gene, and co-existence of alpha thalassemia trait. None of this can be diagnosed without the DNA test. I realize that the waiting is difficult, but you need to know exactly what her status is and the DNA test is the only sure way to do this. Everything else is simply speculation, and with the hundreds of different beta thal mutations and deletions that exist, no one can tell you how each possibility will manifest. The possibility of co-existing alpha trait muddles the picture even further.
Be patient and hope for the best and realize that even when two carriers have children, with proper genetic counseling, you can have children without thal major.