I've had two VERY good sources tell me the Hellephant program is cancelled never to return. One of those same sources told me there is one final iteration of the Hellcat (or similar) coming and that "you'll be very impressed, call me when you wanna order". The other said he believes it'll be a special Jail Break model with a bump in HP.
Dodge's problem has always been they trip over their own feet when it comes to delivery. It's been that way since I got in to the brand back in 2009. Every opportunity they've had to really hit it out of the park they just completely drop the ball. I'm sure this will be no different.
It's also very confusing that they're focusing on 24 Months of Muscle, Direct Connect, Chief Donut Maker, etc NOW at the tail end of the platform. Maybe they've got bigger plans that these things will lead in to but if it's an "all electric muscle car" I think it'll be a flop.