how to download latest world topographic basemap in wgs84

[LakshmiA]

As seen in the link: https://www.arcgis.com/home/webmap/viewer.html?useExisting=1&layers=30e5fe3149c34df1ba922e6f5bbf808f 

[FC_Basson]

I don't think you can, because it is a cached service in Web Mercator projection.

Also read the Terms of Use: 

• http://downloads2.esri.com/ArcGISOnline/docs/tou_summary.pdf 
• http://goto.arcgisonline.com/maps/World_Topo_Map