Possibly one of the most exciting excavations in British archaeology is taking place in the Wiltshire Plains, where archaeologists will attempt to prove their theory that the blue stones were viewed as a method of gaining magical healing.
Evidence exists that there were a lot of seriously sick and injured people buried near Stonehenge. These were people with conditions which would have been fatal over any length of time. The relative lack of bodies that showed signs of recovery would seem to be a problem, as stone-age Europeans already had medicine and understood what worked.
On the other hand, there is indisputable evidence that a lot of manpower was put into this. A semi-permanent settlement that could house hundreds existed. Given that it took over two thousand years to complete the work, and life-expectencies were around 30 years, the total workforce employed could easily have been 7,000 or so. That was not an insignificant percentage of the total available workforce of the country at that time.
It should be kept in mind that archaeology in Britain has an excellent track record of throwing curveballs at archaeologists. The unexpected is commonplace. Now, some may be wondering why I'm linking to a news site, not English Heritage (who own the area and the monuments in it). If they had the information, I would. Some of the non-Stonehenge story links go back to the 1990s - information English Heritage neglect to even mention exists.
As for Stonehenge, all that appears certain is that nothing is certain, which most were certain of before. The new work may yet discover the purpose, but there seems to be far too much theorizing on too little data.