Apple was the first public company in history to reach a $700 billion, $800 billion, $900 billion, and $1 trillion valuation. Could it also be the first company to hit the vaunted $2 trillion mark? And, if so, when will this happen?

In a research note to clients, Evercore ISI analyst Amit Daryanani argues that not only can Apple get to this mark, it can do so over the next four years. That would be just six years after it hit $1 trillion for the first time. Today, Apple is worth around $1.3 trillion.

An updated iPhone X could be a better deal than the current version, coming it at $100 less. Or buyers might be able to get a larger version for the same money as the original.

That’s the latest speculation about 2018 iPhone pricing, as Apple’s smartphone lineup gets increasingly complicated.

iPhone sales may be beginning to slow, but the addition of a 4-inch “iPhone 5se” handset could net Apple an extra 10 million+ units — or the equivalent of an extra 23 cents per share for Apple’s earnings — according to RBC Capital Markets analyst Amit Daryanani.