Over the past year, Cannondale has really dropped the MSRP of the various Slice models. The aerogeeks story is from 2014, and I think the prices they list have been out-of-date for the past year (I think Cannondale dropped Slice prices last fall). The Hi-Mod DA has gone from ~8,000 (Fall 2014) to ~5,200 (Fall 2015) to ~4,500 (Fall 2016).
On the Nytro website, they list the Ultimate for $7,000 (but no availability). Not sure who is currently trying to sell an Ultimate for $10,660. I did a quick Google search and I couldn't find anyone with an Ultimate in stock for that price. If I had to guess, I think the new bike might be the new "Ultimate" model from Cannondale.