Well if they want to keep it at PS4 prices than i see it something like this.
Entry Level Price $399-$499
12TF AMD GPU
16Gigs of GDDR5
8 Core AMD CPU
2TB Harddrive
Premium Price $799-$999
16TF AMD GPU
20Gigs GDDR5
8 Core AMD CPU
2TB SSD Harddrive
With the price hike in PC hardware atm its hard to see next gen consoles being sold at a good price.