First' s Route 23 was selected to recieve 11 new E400 tridents. The first 4 entered service this monday- DN33509-512.
here is DN33511 on it's first day of service in Oxford Street.
Arriva got a batch of 15 E400 tridents for a new route 135 starting Saturday. But this week they are running them in on routes 128 and 275 [only 3 at the most].
Here is T13 on the 275 and the same bus on route 128...
note the adverts- those are paid for by London Buses to advertise new route 135...
