When will humans start to expand the international space station like a more labs and solar panels ETC

Question: When will humans start to expand the international space station like a more labs and solar panels ETC
- Keywords:
  expand,
  ISS,
  lab
Asked by Bennerf920 to RocketRich, Jenn, Floris, Elie, Col Op on 11 Mar 2016.
- Richard Moss answered on 11 Mar 2016:
  
  There are still a few more pieces to be added to the ISS. However, it is generally finished and has enough science labs (inside and outside) to perform all the research we need. In addition to helping scientists on the Earth, we are also developing techniques for bringing people to live on the Moon or Mars.

Question: When will humans start to expand the international space station like a more labs and solar panels ETC