Hi. I think of it as the other way around: it's not appetite suppression, it's appetite normalization. Nutrient-poor sugar and starch foods overstimulate your appetite, and then you get caught in the all-too-familiar pattern of weight gain and countless secondary health issues. Remove the stimulating crapola, and poof, your appetite is the way it should have been all along.

Semantics aside, to answer your question: IMHO, no, that keto-normalized appetite won't go away, per se. You've removed things that artificially jack your appetite. But - there are more factors to appetite than just the macros of your diet and ketosis. You may find certain foods, even though ketogenic, cause cravings. You might find certain social situations drive you to eat more. Same with emotional issues, stress, and other factors like medications or hormone fluctuations. Hence the often-quoted phrases here like "YMMV" (your mileage may vary) and "n=1". Self-experimentation is necessary for long-term success.

Best of luck.