Think Newcastle Brown Ale is just a rumour. They're no longer Newcastle based like they were in the 90's and, aside from the name of one beer have no connection with the city anymore. Sponsorship is generally a local firm aiming for a global audience or an international firm aiming for top market share. Brown Ale is now part of an immense international company (heineken) and as a small brand amongst hundreds of others so sadly I can't see them picking brown ale to plug unless they're planning a large scale programme highlighting all their beers around the world (such as john smiths at leeds and amstel in ajax) which would cost an absolute fortune.