Rapper Ghetts is headed to prison for a long stretch ... but a new season of Netflix's "Supacell" -- a show in which he starred -- is still on the way ... though Netflix is being tight-lipped about the production. Netflix confirmed to us production is underway for the popular British superhero series ... but refused to shine a light on what impact, if any, the development has on the show. And that's a good question ... 'cause in "Supacell," Ghetts played the brutal villain Craig -- AKA "Krazy" -