Oh my...this is awesome news! 
I'm fairly sure it won't be called the Viper either.No way this gets released anytime before calendar 2022.
That's a more realistic timeline... Charger and Challenger must be the priority right now since the are the face of Dodge.The only things currently known are that it will be FMR layout, it will share with a similar, but distinct, Alfa and Maserati. It will be a diledicated, high-ultra high performance car, two seat, and it will likely benchmark the very quickest street cars on the planet, and it will NOT have a V10.
2021 is the earliest. Most of smarter folks are expecting it in 2022/3.
F=Engine in front of driver
M=Engine is Mid-fully within the wheelbase
R=The Rear wheels are driven
Reading this quote from their article was pretty funny:I’ll believe it when I see it. Not when C&D think they know a bunch of rumours.
Not many details have surfaced yet, but trust us: A new Viper is happening.