Indonesia is moving Jakarta's capital status and government functions to a new city on Borneo. Of course, they cannot move Jakarta itself, which is also sinking due to groundwater extraction, and will be flooded unless they build a costly barrage system. They need to get the Dutch back to show them how (the Dutch will need a place to move anyway :)

Thailand is also discussing a similar plan to move the capital from Bangkok to Ayutthaya, the historical capital before the Burmese invasion of 1767.

New York is planning a sea wall system in southern Manhattan - The Big U - but what they really need is a truly BIG barrage from Long Island to Staten Island across the Narrows, and a smaller effort between the island and the New Jersey mainland. Closing the East River will be more difficult, depending on how much of the shoreline will be included. By coincidence, the Dutch also used to control New York.

More by 2050 i.e. more than previously predicted by 2050.