BioWare is hoping the upcoming MMO Star Wars: The Old Republic will last decades, according to a recent panel Q&A at the 2011 San Diego Comic-Con.
Speaking to the audience about the potential for more planets being released in later expansions for the game, senior creative director of BioWare James Ohlen said: "Well, I can say that we have 19 major worlds. Then we have an indeterminate number of minor worlds.
"And our goal, obviously this being an online game, that we're hoping is going to last for decades, we're going to be, obviously, adding more to the galaxy map as the game progresses. We want to add dozens of worlds. Hundreds of worlds eventually. In 2025, we'll hopefully have 500 worlds."
EA has already confirmed The Old Republic will have 200+ hours of play per class, not including raids, crafting or multiplayer. The addition of new planets, which will add further exploration and quests, would inevitably make this longer.