Found this spy shots of the C8 2018 Corvette ZR1 that surfaced on AutomobileMag

Looks like a spoiler should be present given the brackets on the rear end.

There are more pictures here !

2018 Chevrolet Corvette ZR1 Spied | Automobile Magazine

Hard to see the diffuser but in some rear end pictures you can see the exhaust and it doesn't look to be any different than what we're currently getting. Hopefully they change the exhaust design, never liked the 4 tips.

Honestly.. majority of this spy shot vehicle looks extremely similar to what we have now, obviously without the mid-engine setup but you get what I mean

Those two struts attached to the Stingray’s tail, they're probably going to support a wing and for some reason, it looks like they stuck the wing inside the car. Could be the thing wrapped in bubble wrap.

I don't understand why they couldn't leave that in the factory .... ? Good eye though !

Here's a picture of horrible quality (probably due to extreme zoom) of the wing attached

I assume if they keep removing and putting the wing back on that the feature will be an optional one. Personally not a fan of wings.

I'm not too fond of the way that one looks. But if it's active aero, I may change my mind on it.

Unless it's on a specific version of the Corvette and basemodels don't have it. With how other car makers structure it, it would make sense if they follow through. Plus with all these changes going on its what sets up GM to take the route of Porsche, Audi, Mercedes, etc.