Tech Times has the article New Ultra-Thin Metalens Could Replace Bulky Lenses in Cameras, Phones And Telescopes.

The new planar lens is also capable of resolving nanoscale features. A very thin assembly of minuscule waveguides called “metasurface” bends the passing light. The process is similar to that of today’s curved lens.

My reading of the article makes me interpret the word as meta-lens, not metal-lens.  It sounds like a  very promising development.  Again, as I read it, this is not an electronically programmable lens.  This “limitation”  does not detract from the significance of this invention, but it might limit some wild speculations.  On the other hand, wild speculations might inspire some wild inventor to come up with a way to make it electronically programmable.  There is the field of micro-electro-mechanical engineering that I became aware of when I worked on software that could analyze such devices, plus knowing a friend who worked on designing such devices. (For all I know , I suppose it might already be electronically programmable but just not hinted at in the article.)