I am very impressed with your understanding of the subject. You have a much better understanding of the risks than most. You are correct in being concerned. You are approximately 7 months out and it is possible you will see some improvements but not likely complete resolution.
It comes down to how much it really bothers you and if you can live with it. No one will be able to tell you for certain that it will get better or worse. It sounds as if your surgeon has been straightforward in discussing these options.
In my limited experience, I know one aesthetician who uses the Accent on patients and has been unable to achieve significant improvement in "mild" irregularities caused by abdominal liposuction by another physician.
On a few instances I have proceded with small cannula liposuction over previously treated liposuction areas with subtle improvements. I have ccasionally employed fat grafting in areas where the fat seems excessively thin or the skin is adherent to the underlying tissues. I have achieved modest improvements. It would be unrealistic to expect a completely smooth result and I advise patients that I realistically hope to achieve a 30% improvement. Anything more than that is a gift. Of course this comes with the risk of vascular compromise and that is possible but fortunately rare.
I hope this helps.