Within the last 2 days it has been confirmed that all the One Piece episodes on Hulu.com are being set to expire. The reason is due to Hulu's contract with Toei Animation expiring and besides One Piece, other titles that are seen within the source link will also be expiring as the license will expire on April 28th (such as Dragon Ball and Dragon Ball GT).
Anyone who uses official streaming to watch the new episodes on Funimation's website or Cruchyroll, but for me I decided to go with Funimation since I can also rewatch other Funimation titles that also expired on Hulu.
Just wanted to make this announcement and explain the reason why this is happening.
Least it was there for at least around 8 years.