I work in a large corporation and they're still planning their transition to 1.5 and then to 2. I'm keeping up by building stuff in my off time, but trying to keep a fortune 200 corporation on a six month upgrade track? Not happening.
I've already heard rumblings from upper management of going back to some open source Java frameworks like Spring MVC, Vaadin or gulp Struts because of how fast they are releasing major versions and the time and cost of keeping up.
My fear is Angular will be regulated to startups, medium sized businesses or small autonomous business units within larger companies. When faced with a six month upgrade schedule, many larger organizations I fear are going to balk and just drop it in favor of something they are already comfortable with. . ergo my company wanting to go back to Java since 95% of everything built here is done with Java.