Disappointingly, no obvious changes (again) for EMR on the Peterborough to Lincoln route. What happened to the 'hourly service through the day and a Sunday service' that was promised as benefits from the Joint GE/GN Line upgrade and especially when Abellio took over. We still have a slightly erratic service, especially the two 'missing services' during the day resulting in a 2 hour gap between trains northbound and 2.5 hour gap southbound at one point.
Without too far into speculation, it must be possible to run a clock face service and with some investment further improvements still (e.g. double tracking at Sleaford and line speed improvements to cater for the class 170s). I'm not even sure an hourly service is always needed between Peterborough and Lincoln, with just two units it is possible to run an hourly clock face service between Peterborough and Spalding and every 2 hours between Spalding and Lincoln and hourly during the peaks, from early to late Monday to Saturday. Doncaster to Lincoln services could run through to Sleaford to fill in gaps at that end. On a Sunday just three return journeys (e.g. morning, afternoon and evening) between Lincoln and Peterborough would be a massive improvement.