Will I lose bone in my jaw after extractions?

I'm nearing the end of my orthodontic treatment, I had 4 bicuspids removed. In my lower arch, i had 2 wisdom teeth removed (because they were growing in wrong) and 2 bicuspids. Now I have a pretty large gap behind my last molars. My question is, will that bone in that gap slowly erode and affect my jawline or my profile in the future? My ortho is able to keep my profile pretty alright for the time being, but will that change maybe 10 years down the road? Thank you in advance.