Hogsmead at IOA must be set no later than 1997 (the year Dumbledore dies) given that he is present in Forbidden Journey
Diagon Alley at Uni Orlando theoretically is set in early May 1998 (the year Deathly Hallows is set) given the events that take place in Escape from Gringotts)
Yet the two lands have a train that connects them that would seem to imply that they take place at the same time (which they cannot)
Ministry of Magic is set no earlier than late May 1998 so we already know that it isn't the same timeline as the other two lands... it really sets the lands to be visited in chronological order from IOA, to UOR, to EU to create the full "trilogy" as they described it. The rest of Wizarding Paris can be exactly the same as it is in Fantastic Beasts so long as they include none of the FB characters. There is no reason to assume that many of the shops and such seen in Fantastic Beasts wouldn't still be around 70-80 years later (Olivander's itself is believe is over 1600 years old by the time of the events of Harry Potter). Someone already posted that Eddie Redmayne would reprise his role, but I guess they could always have him appearing in a portrait or as a ghost or something and still keep the timeline (at least of the EU land) consistent... though honestly, if they included Newt in the "flesh", only the biggest fans would question/complain...