Some interesting thoughts in this thread!
Not too sure how much I can give away but the launch for the X7/X8/X9 and X20 should both be very soon as the majority of the vehicles are ready now.

In fact I've just seen a picture of VLW117 (our 7413 - LF52UPN) at Enfield fully ready to head north, and I believe 7412/4/5 are all ready at Thorntons. Just need the branding adding and then I'm sure Titan will be along to provide a performance!

More Max routes to be added as we go into 2016, including the X75 as previously mentioned.
I'm not sure whether we could take the X15/X18 out of Max now if we were to brand them separately. The growth on that corridor and certainly the X93 suggests that Max is very popular with our passengers so why fix something that isn't broke?