Constructor HD hasn’t been delayed once but twice. System 3 originally announced that the HD remake of the 1997 title would be released on January 29th 2016, but pushed the game back saying more work still needed to be done. A new release window of summer 2016 was given instead but those months passed by without Constructor HD appearing.
Today System 3 has penciled in a new release date of April 28th to coincide with Constructor’s 20th anniversary. That gives the developers a little bit more time to polish up so the game can go up for sale on PS4, Xbox One and Steam.
Source: Press Release