If you go to www.poptropica.com, at the bottom it'll say,"sign up to be e-mailed when Astro-Knights island is realesed"then you have to do what they say!
the creators of poptropica have not planned a final date yet. It may come soon though.
It came out December 4, 2011. In the date it came out, it said "Poptropica Beta" with the bata down below. And we see the text in bubble fony
December 30 2001010
The exact date is not certain, butpoptropica has promised that Astro Knights should arrive sometime this spring which began March 20, and ends on the 21 of June. When poptropica says that a new island should arrive in a specific season it normally appears in the the middle of the given time span so if May 4 is the very middle of spring it should arrive sometimearound then. Now this just a lot of math and probability, but it sure is better than no answer!
march 18 2010.
The creators of poptropica haven't created a final date but you can download it and there are new islands. These are the new islands: Phineas and Ferb island Steam works island 2 and others i forgot the rest
March 5, 1989
You wan to know when game show island will open on poptropica? OK I will tell you. It already opened.
Use the link below to the Poptropica site to see the newest advertised island. No one else will know before the island is announced there. Cryptids Island opened in January 2011. Wimpy Wonderland opened (early) in March 2011. Red Dragon Island opened in June 2011. Shrink Ray Island opened in July 2011. Mystery Train Island opened in October, 2011. Game Show Island opened in November 2011. Ghost Story Island and SOS Island were scheduled for early 2012 release.
February 23, 1985
Reality TV Island is the 11th island on Poptropica. It will be available to Poptropica's monthly "Members" only, beginning on February 24, 2010. There is no date set for general access.
Even now, in 2008, a few people are knighted in the U.K. If you mean 'knights in shining armour' it is not possible to give a precise date.