If you look at the history of the series, it took six years to go from Street Fighter II to Street Fighter III, and nine years to go from Street Fighter III to Street Fighter IV. Purely based on that it would probably take us until the year 2018 before Street Fighter V comes out. So I hope everyone will play Ultra Street Fighter IV for a long time.
Lack of money is another thing affecting "Street Fighter V," as series producer Yoshinori Ono tweeted "I don't have R&D budget and staff." With time and money not on their side, it would explain why the "Street Fighter" team at Capcom continues to update "Street Fighter IV," amid criticism of multiple game releases. As shown by the Jace Hall Show, the "Street Fighter" community is not only alive and well, but helped shape latest edition of "Street Fighter IV."