It looks like this – or at least that’s what DigiTimes raport suggests:
“Increasing built-in memory capacity at next-generation smartphones, including new iPhone devices, will further ramp up demand for memory products in the third quarter, said sources, noting that the mobile DRAM capacity of the next-generation iPhone is expected to increase to 3GB from 2GB previously, while those for new Android phones are expected to raise to 6GB from 4GB.”
So yes, we may have hope one of this years models (and rumor hav that Apple preperes 3 models for this year) will have 3GB RAM.
Probably we will have to wait until September for confiration.
Source: GSM Arena