I hope they ditch the V6, simply because it sounds so bad.
A 90° shared pin V6 will never have a pleasant sound, and even 4 cylinders sound better.
I like the sound of the 2.0L 4 cylinder turbo DTM cars, and the 1,6L 4 cylinder turbo rally cars way better than those raspy, buzzing V6 we have en F1 now.