According to The Verge, Parallels Desktop will be built directly into Chrome OS in order for this to work. It'll mean you won't have to be online in order to properly use Windows apps like you currently do with the cloud solution. 

The catch is the feature will first arrive for Chrome Enterprise customers only, and it’s not clear if it’ll roll out to individual consumers. But if businesses can be convinced of the benefits then it’ll be another good reason to invest in Chromebooks for employees over Windows laptops.