Welcome to The Oral Cancer Foundation. You are very fortunate to have been given this diagnosis! The good news is that not all dysplasia turns into oral cancer. Here is a very similar thread with some responses from members who have had a similar diagnosis. Several of them have had it turn into oral cancer. Try not to be scared, if it would turn into something serious, you are in the right place for help. The members who join and it doesnt turn into OC, dont need the forum so they havent chimed in. Sometimes the dysplasia is surgically removed but it can return.
Try not to worry. Just keep an eye on it and if it changes then go back to the oral surgeon or seek out an ENT who specializes in oral cancer. For now, try to relax, you really are very very lucky!!!!
Dysplasia thread