Yes we will have top authors, witnesses, curators, and investors speaking! I just made the announcement today and will be reaching out to everyone I have contact with to present along with having already sent @ned a message on steemit.chat. For some not able to make it in person, we may have a live call with the audience! I expect we will have significant overlap with who attended Steemfest 2 along with many of us that were unable to attend!