It’s perfectly possible, although it would also be in the producers’ style to leave a little door open for the future, despite their apparent lack of intentions to continue the show that far. Who knows what the future will bring and how their attitudes are going to change, and it’s entirely possible that season 5 might inspire even greater things in the future.
Of course, that’s wishful thinking at this point, and fans should concentrate on the facts we have at hand. It looks like the showrunners are planning to communicate their intentions for season 5 very actively leading up to its actual release, so viewers should stay tuned for more information on the official front soon.
It’s definitely interesting to follow the current situation around “Prison Break” and its revival though, as it’s quite surprising that a show so old can still draw in viewers in such large numbers, and do it consistently.
It will be particularly interesting to see if it manages to have an impact on other productions on television, perhaps bringing back another beloved forgotten old classic that nobody would suspect to see on the screen. There is certainly no shortage of candidates for that, and we’re sure that the respective rights holders are actively observing the current situation for hints about what they can do.