Here are some fresh details regarding the 2015 Volkswagen Transporter T6.
According to Autobuild, the new model influenced by the T5 and share several key components with the outgoing model. 
We don’t have engine specifications but we can assume that the car will include a 2.0-liter petrol with 224 HP and a 2.0-liter diesel with 231 HP.
Also, we expect that the Volkswagen engineers will focus on increasing practicality and lowering emissions and fuel consumption.

Source: WCF