That depends.
Legacy FP was great because its overflow still had standby as an option.
There is no option for overflow with SB+.
I suppose the reports that they opened the line back up at 8 is somewhat helpful. But I still haven't heard that they actually told guests they were going to open it back up, so only helpful to the ones who stayed that late and stumbled across it. And if word does get out that they are opening the line late in the day and that line gets crazy long again, forcing them to stay open even later, I doubt that will continue.
Remember when the only "inside information" people had to worry about was that they could use FPs late? Man, there's so much inside information with FP+ I can't keep up. And I have more than 28K posts on the DIS!