I'm not sure if they will launch with an A350, however it's probably about the same size as a 777 so no point swapping aircraft around to upgrade an existing route. Regardless, I think its more than likely that once they start receiving deliveries of the A350 you will see a lot of expansion. They have 60 A350s on order, and also 35 787s due in 2025.
If it doesnt relaunch then I'd be shocked.