I settled for an Amazfit Bip, which is not a Pebble but in some respects it's the closest thing there is right now AFAIK.

Battery lasts a month, screen is not e-ink but it's always on (I believe LCD), watchfaces are customizable but there's not a lot of good ones since the resolution of the screen and the colors aren't great. Functionality is pretty limited, but good enough for time, gps and notifications.

I have one and I'm satisfied with it, and I'm looking forward to what they do with v2.