Design patterns, component/aspect oriented programming, signals/slots, metaprogramming, rapid prototyping languages/environments. There are so many innovations happening in graphics and other tech (for instance behavior tree's in AI, screen space ambient occlusion in graphics).
Have a trawl over GDC's things from this year and see if any of those sound useful to you.
You might want to check out .net and C# too (rapid tool creation).
Nothing is really "new", but theyre certainly worth learning from.