Google traditionally holds two keynotes during its annual Google I/O events — one for Android and the other for Chrome, its two main ecosystems. But during this month’s event, the company has just one scheduled.

The three-hour morning session will be held on Wednesday, May 15, and it has sparked speculation yet again that Google could be set to combine Android and Chrome into one platform.

Rumors surrounding this move have been circulating for as long as I can remember. Android and Chrome have begun to overlap in some areas, and to many it makes sense to integrate them into one operating system.

Google has also sent speculation into overdrive by unveiling chrome Android statues on its Mountain View campus, and by making Sundar Pinchai, the company’s vice president of Chrome and Apps, also the head of Android.

But Google has made it quite clear that the two platforms will remain independent.

Back in March, company chairman Eric Schmidt told attendees at Google’s Big Tent event in New Delhi, India, that Android and Chrome are “certainly going to remain separate for a very long time, because they solve different problems.”

With that in mind, it seems unlikely that this is why Google I/O will only see one keynote this year. It’s more likely that Android and Chrome will remain separate, and that Google will just condense all of its announcements down into one event.

This could mean that this year’s keynote may not be as significant as those in previous years. Rumors have suggested that Google won’t launch its new Android 5.0 Key Lime Pie software this month, but rather an incremental 4.3 upgrade instead.

Whatever the case may be, Google I/O is sure to be very exciting. The event kicks off on May 13, and Cult of Android will be bringing you all of the news as it breaks.

• SourceAllThingsD