I can confirm that traditional dining is back on the Silver Star. Because the train was extremely late leaving Orlando, I did not get to experience dinner (hopefully on my return). I had breakfast this morning. All tables were set for 4 passengers (and there were flowers). Although I was early and the car was not crowded, another passenger was seated with me (much to his disappointment, I think). The food, in my opinion, was much better than flex meals, although I do not think the server was a good as the servers from years ago (which I expected since this server is virtually brand new).
A positive from flex dining was that we were able to get a full bottle of ice tea upon request, Now the ice tea is poured into plastic cups. I am on my second refill now since I really like ice tea.