After Rockstar released the fifth installment for its "Grand Theft Auto" franchise, hardcore fans have been waiting and speculating on the next sequel. It's no wonder — after all, "Grand Theft Auto 5" broke records and is one of the fastest selling titles in gaming history. On its first day of release alone, it raked in $800 million, and gathered $1 billion in the first three days upon its release. 

In the hype surrounding the fifth game's PC version launching on April 14 and the subsequent release of "Heists," fans are speculating that the next game might finally link all "GTA" cities together. 

Even way back in 2012, Rockstar head Leslie Benzies already expressed in an interview with Digital Trends that what they imagine is for players to be able to travel back and forth between the cities used in previous "Grand Theft Auto" games. 

Said Benzies, "Of course at some point we would like to have one big world containing all our cities and let the player fly between them and revisit their favorite areas." 

However, the company might also be thinking of going back into a much-detailed and revamped Vice City.

Benzies added, "It is always a possibility. There are a few references to the city in our current-gen GTAs so it is part of that HD universe, and it is certainly somewhere we would love to revisit. However Vice City, perhaps more than any other GTA game, was as much about the era as the setting."

Other fans think that the next game could focus instead on returning to San Fierro and Las Venturas, since most of the areas in these two cities have yet to be explored. In the most recent "Grand Theft Auto" game, only Los Santos and Blaine have been mostly available to players.