The Springfield Squidport is taking a very long time to complete. Odds are we’ll see a Christmas update before a majority of people complete their boardwalks. It gets especially hard to wait as the last 30 tiles take 3½ days to complete. This means you’ll only be able to build two tiles a week during that final stretch. Of course you could always spend some donuts to rush a few tile builds, but that can get very expensive, very quickly.
Are you pacing yourself with the tile builds, or are you in a hurry to see a completed Squidport? Has the Krustyland expansion distracted you from focusing on the boardwalk? There is so much to do in the game, and it shows no signs of slowing down.