The key to understanding this site is they manufactured ceramic plates, pots, tools, etc. Before 1515 all the production fragments found in the vicinity, or elsewhere, traceable to this site were in traditional American Indian designs. After about 1550 all the production fragments are in European designs.
The people didn't change ~ the Indians began selling to a new market ~ at this time it's believed they were selling pottery to European fishermen and adventurers. However, that site continued to be occupied right up to the time the English paid the Powhatans and Iroquois for their claims.
I see additional news about the site every now and then, but the enormity of the claim ~ an Indian industrial town lasting for thousands of years that's been continually settled right down to modern times ~ is being soft peddled. That tells me these guys have got the goods and will be publishing a book about the place.
This is older than Mexico City
Well an Indian site can hardly be counted as the earliest European settlement.