The first time I had spotted this change of the line of route for buses terminating at WC Bus Station, I thought that the Westfield extension had reached a new milestone, now accommodating a quicker journey between Shepherds Bush and the bus station, but also boasting a HUGE bus stand for all bus routes! The first bus I took through the extension was Metroline's refurbished DE1017 on route 316 - I then turned around in the opposite direction to film - got on an ordinary VP on route 260. What I love about the extension as it will be under the Westfield extension! Careful planning has allowed for amazing solutions like these and I strongly believe that everyone involved has done an outstanding job.
Thank you for your post, however, this is a Worcestershire specific forum for bus users. Never-the-less I would like to know more, where about in the country are you referring to? I would like to see if there is anything in the improvements you have mentioned that could help our dire public transport situation.