I agree Monte , I don't think anyone expected established AB's to come this way , in fact it was more likely that younger players like Marcus Smith , Gabs Ibitoye etc would go the other way and similar age players come to us .

see this article from last march

"Harlequins are not expected at this stage to instantly bring in a number of high-profile All Blacks, with the partnership instead seeing younger New Zealand talent making the move north to gain valuable experience in Europe at an important early stage of their careers "

https://www.telegraph.co.uk/rugby-union/2018/03/02/harlequins-become-go-to-club-blacks-stars-seeking-sabbatical/