thanks for your query.
Your wife has an abnormal hemoglobin
As you are not positive for thalessemia, at the most, your child would have a risk of being a carrier for this abnormal hemoglobin pattern.
And that too is not a certainty.
Please be reassured if your wife has no major clinical symptoms.
For best guidance regarding patterns of inheritance of hemoglobinopathies, please consult a Genetic counsellor.
All the best.