Visual Studio Update 5 is now released and maybe you are also struggling where to find the download link for full ISO (because you do not like web installers as I do).
Direct link: https://go.microsoft.com/fwlink/?LinkId=519391 (6GB in size!)
Long story: Go to https://www.visualstudio.com/downloads/download-visual-studio-vs, scroll to Visual Studio downloads, click on Visual Studio Updates, then Visual Studio 2013 Update 5. In Choose format dropdown pick ISO. Done! Same link as above!