Plate Tectonics on Europa

We've seen traces of what could have been plate tectonics on all of the other inner planets, but Earth is the only one to still have an active and moving surface.  Plate tectonics are a big deal, scientists believe the recycling of materials is important for life.  Now, strong evidence suggests Europa also experiences plate tectonics.

Europa is certainly getting interesting, with the recent suspected discovery of plumes of water jetting out from the surface, similar to Enceladus.  While the plates, really large chunks of ice, probably don't go down all the way to the subsurface ocean, material probably gets down there somehow.  It doesn't guarantee life exists on Europa, but it makes sending a spacecraft there to find some answers even more important.  Seriously, when is that happening?