Finally, a good ab question!  I didn't think it was possible

You should certainly wait until you've shed the inches before you expect to see much results, but that doesn't mean don't work your Core. Depending on your workouts schedule you should be attacking the core once or twice every session, and then once a week have a routine dedicated to ab work that mostly evolves targeting your obliques,  and lower abs (leg work helps here. Hanging knee raises,  squats, reverse crunches, etc.) .

As the protective layer of soft and cuddly begins to lower then you can switch your "ab" routine to a 3 or 4 day spit. Alternating obliques , or "sides" of your abs, and middle with a day of rest between them.

Never workout your abs every day. Just don't do it. That's bad. Regardless of what anyone says...it's bad.

Let me know if you have any more questions.