This is supposed to be close to the final design. I prefered the original design, but it could be worse. According to the principal for Hyatt's architecture firm, not everything in the design has been decided, but "the building is the height it’s going to be, it’s the footprint it’s going to be, and it’s the shape it’s going to be.” http://www.bizjournals.com/kansascity/news/2017/04/04/hyatt-convention-hotel-design-delays.html
looks like its been cut in half from the original rendering
Hyatt out, Loews in.
Also, a rendering with improved external design elements.
From Kevin Collison at City Scene KC: http://cityscenekc.com/new-renderings-of-planned-convention-hotel-show-transformation-of-current-downtown-dead-zone/