What a terrible map.
If GBR is the brand, why are there 'other operators' - surely XC, LNER and EMR will also be GBR services within the lifetime of the map.
And if GBR: Anglia is the brand, why isn't it mentioned, and why are there separate colours for C2C and greater Anglia services, which are no longer separate operations?
If this map is supposed to be showing passengers where services go, the old GA method of colouring in Intercity, Commuter, West Anglia, Regional and Stansted Ex services in different colours (whatever the actual names were) was far clearer than this map, which implies I can get a direct train from Sudbury to Norwich.
Anyone who thinks that GBR is going to care about its passengers should be given a copy of this map and a wall to bang their head against until they realise that no one has a clue what GBR actually means for passengers!