Faceplate if its one that gives you a dedicated ADSL socket and a filtered phone socket, then unless really old and getting dodgy no reason to change it.
There was the Billion AXL which has been replaced by the Billion AC1600
http://amzn.to/2suNFpK but at £169 its not cheap, getting the cheaper 8800 NL and turning off wireless and getting a dual band wireless access point like this Asus
http://amzn.to/2tsNTlR at £29.99 would give a cheaper solution (having wireless access point means you can position modem/router in ideal location for VDSL2 and run an Ethernet cable to location where the wireless is ideally located.