Jet2
The adverts are standard ones and should not be regarded as an indicator that Salzburg or Geneva are going to be new routes from Newcastle. In the Summer they regularly ran adverts for routes from NCL which included Faro which as you all know was never offered by Jet2. With the Winter season starting in a month and a bit time Id also be suprised to see any late additions to the Jet2 route network from NCL for the winter.
Rumour has it an announcement of new routes for SO8 from NCL due from Jet2 in the next couple of weeks, so I suppose watch this space. Apparently a long haul route is a serious possibility, SFB?