Assuming that the phone will use the same SOM (announced here) as the dev board, and combining it with the info from the campaign page, we will have
- 3 or 4 GB RAM
- 32 or 64 GB eMMC storage
It’s also likely that the SOM is only available with 1/2/4 GB RAM and the promised 3GB was the maximum supported by the iMX.6. So, pretty confident we can have 4GB 