I am extremely interested in the XPS 13 9370 with the i7 @ 16GB with the 1920x1080 vs. the 4k display (strictly for battery savings). I only see the i5 @ 4GB/8GB as an HD offering at this time. Does anyone know if Dell normally offers more configurability over time for things like this or if I don't see it offered now, should I not expect it down the road?