Personally I'd rather see these stupid tickets scrapped.

It'd be much better to have the following tickets with the area split into 4 zones imo using the Metro zones, with additional tickets for weekly, 4 weekly and yearly. *Prices are just examples.

Bus (Regionwide): £4.60
Metro / Rail (1 Zone): £4.00
Metro / Rail (2 Zones): £4.80
Metro / Rail (3 Zones): £5.40
Metro / Rail (All Zones): £6.00
Metro / Rail / Bus (1 Zone): £4.60
Metro / Rail / Bus (2 Zones): £5.40
Metro / Rail / Bus (3 Zones): £6.20
Metro / Rail / Bus (All Zones): £6.80

Network One, Metrosavers, TNE, Coast Road, Operator Specific + whatever else is around scrapped. It's ridiculous the number of pointless tickets there are up here and this is one of them. The vast majority of bus users will be just buying 2 singles anyway.