In all honesty I hope Norwegian don't. I'd much rather see someone like Jetblue, with 'Mint' service, IFE in economy, connecting flights and codeshares... A hybrid airline, offering affordable transatlantic flights (not bottom of the barrel, market trashing £60 flights)
Fingers crossed they do get the A321LR and fingers even more crossed that they like the look of what Newcastle has to offer.
By virtue of being a low cost/hybrid airline, business traffic would be limited, so 3/4 weekly flights shouldn't be unattainable