I am pretty sure future will have generics. Even present has them in every (semi-)mainstream language. I would approach Go very carefully. Many things Google creates it then kills (e.g. Dart is under threat already: http://news.dartlang.org/2015/03/dart-for-entire-web.html).

I had the same fear too... It is not completely gone. But it helps a lot the fact that it is fully open-source, and the majority of contributors are outside of Google.