Adding to the suspense, Eddy Cue, senior vice president of Internet Software and Services at Apple, boasted earlier this week that Apple's lineup this year was the best he had seen in 25 years.
What's the company got up its sleeve?
Although consumers will likely have to wait until later this year for big product announcements, industry experts say that the company may roll out some new features in its software at the conference.
The tech giant is expected to focus on two big themes at the event: health and connecting the home. And the company could introduce features in the new iOS8 that will enable iPhones and iPads to act as remotes for home appliances as well as introduce more health and biometric capabilities in the software.
"For Apple, it's all about having all the devices connected and getting people even more locked into their ecosystem," said Carolina Milanesi, chief of research at Kantar WorldPanel.
"It's trying to add value to devices that we already have. In a sense, Apple is going to everything it can for the iPhone to become indispensable. They want to make the iPhone the center of everything I can do."