I believe these rumors are bogus.
However, that being said, I wouldn't mind them becoming true -- to an extent. The Turkey rumor is interesting, it would be an unexpected country. And to those who are saying "change Morocco", no no... the countries can't really easily be changed, they are all based on actual landmarks, not just stereotypical architecture. While Turkey and Morocco share some common architecture, they are still different enough that a switch over would be very complex-- may as well build new.
I do like the idea of Brazil and/or Greece. I'm not a fan of the Australia idea for WS though -- put a big Australia in DAK, so much potential.
As for the DHS rumors mentioned, hm. As previously mentioned, Indy pretty well fills up for every show, so it is obviously still drawing people in. I, honestly, wouldn't mind seeing it go, but it is a huge crowd eater. A Star Wars land would be pretty cool, but I'd rather just see the Lucas Land more developed. Backlot Express needs a new theme. I hear guests complaining quite a big about how "nasty that restaurant looks". Their menu is blah, the theme is blah, it's all just blah.
After all this Fantasyland stuff is done with, I have a feeling Disney will finally say "Okay, Studios." ... and maybe "Okay, Animal Kingdom." Both are in need of some new stuff. Yes, DHS is getting ST2 but I don't think that's going to make DHS a huge draw for the long-term. We shall see.