The Enfield location looks like it has loading docks and a warehousing function. Can’t imagine moving that to Boston, so other changes must be afoot in distribution.
According to this article:
https://bankerandtradesman.com/lego-picks-boston-for-new-americas-headquarters/
the distribution function is already removed from the Enfield offices.
It is also interesting that they are still seeking a Boston site—which means they have the option of bailing to anywhere in the country if they choose to do so.