Although Power View and Power BI reports are similar, Microsoft is focusing on the later. Power BI platform is being separated out from Excel for many reasons. One of the reasons is to eliminate the dependence upon Silverlight (technology used to create Power View, which is now being phased out).
Here is a 2 minute video which explains how to convert Excel based Power BI components like data mode, queries, relationships and Power View dashboards into Power BI Desktop. Once converted, you can publish these to the Power BI portal.