I think this has happened for a long time. First (70s), features from Algol-68, like structured programming or better flexibility for data types, were ported to other languages. Then (80s-present), the features from Smalltalk and Lisp started slowly to be ported to other languages, many times in an incomplete or unelegant way.

We're still doing this, for example the last production spec of the Java language finally incorporated a mechanism to pass functions as input parameter on a method. And the next version of Java (9) will attempt to have some interactivity, with a kind of REPL. This, coupled with the powerful facilities of good Java IDEs, will give Java developers of 2017 the level of Interactivity and easiness of development that Smalltalk and Lisp users have enjoyed since the late 70s. Sad but true.

Julia -an interesting language, by the way- borrows multiple dispatch from the Common Lisp Object System (CLOS), among other features. CLOS itself was a further evolution of the OOP brought to the table by Smalltalk, invented by a true genius: Alan Kay.

Rust is basically a "fixed C++", that is, a more usable, less annoying C++.

So it's difficult to say there are truly new things in programming language. But it's not everything limited to Smalltalk and Lisp -- Prolog, ML (and OCaml, F# and Haskell) do bring new concepts to the table, and are worth checking out.