Blimey, from zero to 18 flights a week ! You can predict the outcome can't you!!
Same as Berlin when we went from 2 x E145s a day to 2 x E145s + B733 + B738 a day & ended up with none.
Mind you, if the ZB does operate in the morning, it would be a bonus & if the IB does connect well-then there is hope for them too. I think TAP has "tapped" into the south american market well- is there room for two?