I can see the appeal of re doing its previous cities but for some reason i feel like they wont. I thought the biggest reason and appeal of re making Liberty City was because in its 3 previous incarnations it was not an accurate map of New York. Vice City, Los Santos, San Fierro, and Las Venturas looked alot like their real world conterparts. Re designing them seems pointless to me since they are already pretty accurate versions.
Just like many others on this forum, id love to see GTA go to England, Japan, or even a Middle East city. Id also like to see another kind of protaganist, like an undercover cop or a government spy (a full time spy unlike CJ and Niko's freelance kite work).