Basically NY will be treated like any satellite campus. It will grow, but slowly as it has for years. The big "deal" with this move was bringing 25k jobs to NY, which has 5k now. That isn't going to happen, at least nowhere near the timeline it was.
The public is so muddled about what an effective job creator yields. They could move a small niche of AWS to Newark, restore some warehouse into office space, and claim they are adding a projected 10k jobs to the area.