I was there today and only saw LL:DOD do one full drop test while for the rest of the day, they were just pulling the gondolas up and down the tower. They also tested Superman a few times during the afternoon as well. As I was leaving after park closing time, I noticed they replaced the old blinking red light bulbs on the tower with some new brighter red LED-type lights instead. Just a tiny detail, but it seems to give the tower a more modern look during night time now.