Jeff, i agreewith what most have said, you arent going to see a change at all. The rest of the herd is going to go about its business like they do all the time. The only difference is the smaller bucks wont be chased around as often by the "bull".
I would also mention that just cause you arent seeing anything over 1.5 years of age, doesnt mean they arent there. I also wouldnt find it hard to believe that there wasnt a deer or 2 or 3, that were larger and more dominant that the bull on the poperty you hunt. Just look at how many times you hear about people putting out trail cameras only to find a monster that they have never seen before. It sounds like your poperty and the neighboring property has great habitat. There has to be a pope and young or 2 running around.