Thanks to @evleaks we know what we can expect from Sailfish despite the fact that it will hit shelfes probably in September or October.
Honestly only new info about Sailfish is screen: 5.2″ instead of 5.0″ and confirmation on Snapdragon 820 as CPU.
It looks like Sailfish will be for more affordable segment and Marlin will be true flagship.

Source: techradar