Well done!
Keep going with what you are doing, and wait and see.
But the reality is that now you have had a brush with diabetes, you will always be at higher risk than people who haven't.
You already know this, but keeping D at bay depends on lifetime lifestyle changes, no backsliding, and finding a way of living and a way of eating that is sustainable for ever.
There are quite a few of us on here who have, with the best will in the world, made huge changes in our lives, and then for any number of reasons (often stress, illness or personal tragedy), lapsed and re-crossed the line. Every time that happens, it becomes harder and harder to recover lost ground.
Sorry to inject a downer, but this really isn't a case of making temporary changes, hitting target and then relaxing.