X20 and X75/X76 are definitely in the list to be done... X20 buses are being refurbished at present, and X75/X76 are due to be done - with 4652/4/8 being the allocated vehicles (probably looking at February 2016 for that though).
Hopefully be able to tell you all about further MAX conversions soon!
I don't know whether we'll be having any more Sapphire routes though - maybe we could have another in Northumberland without over-doing it?
We have buses allocated to other routes that haven't been branded yet though with the uncertainty over the future of Frequenta, and further vehicles are expected to be fitted with wi-fi and next stop announcements.
RE: Arriva North East: Latest News & Discussion - December 2015