According to ACL Eastern and Blue Islands have been granted slots for SOU-DUB.
The same source also shows Blue Islands having been granted slots for SOU-MAN, in addition to Eastern.
It was rumoured on here a while ago and, while the current situation means that everything is up in the air as far as start dates etc, in the long run it looks as though there was some substance to the rumours of a Blue Islands expansion at SOU.