Gatwick longhaul routes
Cathay pacific are going to be launching flights to hongkong in October. Massively in their plans this year.
Avianca are going to be launching Bogotá at some point. Sri Lankan and Azul are also on the cards.
from an African point of view air Tanzania, air Zimbabwe are also likely to launch.
From my point of view nearly every carrier could launch Gatwick at anytime.
singapore launching flights is so massive for the airport could very much see a domino affect here