Srry everyone but it looks like there won't be a Season 5. Most of the actors decided to stop working on it. Mace Coronel (Dicky) left the show which means there is no possible way to keep the show going for another whole SEASON. The only two shows in Nickelodeon live action show history to have more than 4 seasons are All That and iCarly. NRDD was not as successful as those shows. Even why u try to think it will come back, you look through the episode list and find Lasties with Firsties and realize "This is the end"...😫😫😫😫😫😫😫
Possible Chance of Season 5: Season 5 may be a possible season though. It may have not been as successful but it did finish #1 in the ratings. I would say Season 5 has a 22% chance of coming. If enough viewers in the season the chance will go up higher and Season 5 will be renewed.