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.â€
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