 In addition; tracks, signalling and overhead wires are also being overhauled.Longer-term plans include the procurement of an entirely new fleet of trains and further extensions to the system.Proposed routes include to Newcastle's west end, to the Cobalt business park in North Tyneside, to the Metrocentre in Gateshead and to additional locations in Gateshead, South Tyneside and Sunderland.