The Viper will most assuredly NOT come back. The Viper had a hand made, single vehicle platform, and a dead man walking engine. To survive in its then present form, to bring its platform and engine into compliance with ever tightening regulations, it would have needed outsized capital investment it would never have been able to payback.
It’s very existance was an anachronism, and doomed Viper to an eventual death. It’s days were numbered the day it was launched. We all knew it, we just didn’t want to admit it to ourselves.
It’s spiritual successor is said to be on its way (2022/23ish). This car will certainly not be called Viper. FCA isn’t going to try to tame the snake again.
The coming car (NOT-A-VIPER) will be a production line car. It will be the same FMR layout (engine in Front of driver, Mid mounted engine, Rear wheel drive) as Viper. No body is currently speculating on the engine, though some believe it will debut the mythical “Gen-IV” hemi.
It will share its platform with a similar yet very distinct Maserati GTO, and an Alfa Romeo Alfieri. The Maser will be the same thing the current Gran Tourismo is, a super grand tourer, well into the exotic spectrum. The Alfa will be the rebirth of the classic Italian sports car. Though we don’t know for sure, the NOT-A-Viper will be the super athletic, overpowered, knuckle dragging American jock. Uncultured and unapologetic.
That is what we know currently.