There were mutterings on another airline forum regarding this about a month back but so far nothing has materialised. My guess would be that any new routes will be announced for the winter schedule now, as it is getting a little late to announce new routes starting this summer. Also it's coming up to the time that ZB usually put their winter seats on sale now, so I reckon any announcements will tie in with that.
I have yet to see this ad campaign. In what way did it imply they would be expanding from MAN, Vuelo?