I also read an article about the E190's range from LCY. It states over 800 miles but fails to mention anything about with what kind of payload.
Looking at BACF's timetable. It looks like the E170's are planned to operate the MAD service. Does the E170 have more of a range than the E190's??.
There seems to be a few gaps in the timetable for the summer. Guessing they will be filled by the rumoured new routes. BCN seems to have done well this Summer. Maybe they will increase the frequency next summer.