Entry point price? I think it will start lower than the current $2499.
The entire unit is 1/8th the volume of the old one. That's a lot less material. It also takes up less space, which is a factor is warehouse and transit costs.
It will be logically less than half the weight of the old one. It's a lot cheaper to ship.
This machine will be made in the US, where the big centers for media production are. Not shipping them all from China will reduce costs as well.
Some of the changes will also cut materials costs. Not housing/including 4 HDD's, not including an optical drive and the reduction in types of IO will all cut costs. Those will largely be made up for in the new components, but it's not like they're sticking the new stuff on top of the old.
I think once most buyers factor in all the upgrades they want they'll see similar pricing on the high end models to what we see today, but a somewhat lower entry point wouldn't surprise me at all.