Allegedly, that's what the new Viper would have been, but I'm not sure how much of that will be in the new one as I believe Dodge said they were going to either start from scratch (post the breakup from Mercedes) or basically tweak the previous car more. My guess is its the latter since its a pretty short time frame from when they stopped.
Really the SLS is what'd you expect if the Viper came with a Mercedes badge (more refined). If the new Viper is that but with a 700hp V10, and looks like a mix of the first two iterations of the car (with maybe a bit of the Alfa 8C's flamboyant curves thrown in) then oh yes.
I used to be a huuuuge Viper fanboy growing up. As I matured I kinda lost that, especially when the new one came out. I only really started to like the new one when they added the huge hood vents and bumped it to 600hp.
Oh, I really miss the intake runners from the original. I wish they'd dress up the engine like that.
Personally, I could live with a change from the V10 (although I love the V10), and I could even live with them "civilizing" it by adding a good dual clutch performance gearbox (although if they did that I'd really wish that they would do everything possible to make it seem like you're shifting a manual and not have steering wheel paddles, basically make it work like a sequential manual, but can be automatic when you want it to be) and traction control system (that you can turn off). Just make it fairly light (sub 3500lbs), 2 door, aggressive looking, with a ton of power (especially torque) driving massive rear wheels with huge brakes to match.
I actually expect they'll start out a little north of the 600hp from the previous car (or maybe just get the torque back to higher than the hp), and then maybe later in an update bump it closer to 700.