Ralph Gilles told CarAdvice.com.au that the era of the HEMI could be over by the end of the decade, and the replacement motor likely won’t be a naturally-aspirated V8. Gilles straight-up admits that the only reason the HEMI V8 line of engines has stayed in production is because customers still love and buy them. But by the end of the decade, Gille says the HEMI era is likely to be over, and SRT will have to look at a wider variety of options to make power beyond large-displacement V8s. The most likely path for SRT to take is that of turbocharging smaller four or six-cylinder engines, though other options, like hybrid-electric or even turbodiesel engines have been providing surprising levels of performance for other automakers. I'm glad I have a Challenger SRT and will never sell it!
I dont think they will end up with V8.. That sound ridicilous, no one wants challenger with a ricer motor for example