Yes, these are the last two services yet to return to the schedule. Hopefully next May when XC return to a full Stansted timetable.
Not quite, the 0851 LIV-NOT is still missing on Saturdays, and from the May 2021 timetable there was an 0501 NOT-SLR via LCN, which then formed the first SLR-LCN, and then sat on the Joint Line for the remainder of the day filling in the gap in services on that route, which I think was 3 x round trips, as well as a number of Newark North Gate shuttles which had been made up to hourly and is now reduced to just 5 trains per day in addition to LNER services.
Regarding discussion of the paths I think they might have to be changed towards the East end of the route as there is talk of the turnaround time for traincrew being extended as Nottingham based crews wouldn't be able to have a break in the turnaround time of the new paths, whether this was from the now withdrawn ECML recast or not, I don't know.
As for "the route would be better at Greater Anglia", the route was centred on Nottingham from both a rolling stock and traincrew perspective purely because of cost, recent attempts to send the work elsewhere I can think of...
- to TPE with depots at Sheffield and Liverpool gaining work, thrown in the bin early 2020 despite recruitment of drivers already having started due to the increased cost of operation, and COVID.
- with EMR opening at Liverpool depot to take on some of the work, thrown in the bin due to the increased cost of operation.
- with EMR splitting the route and running Liverpool to Nottingham and Matlock/Derby to Norwich, also thrown in the bin because it didn't work.
The only reason a depot at Norwich exists for EMR is because the route wasn't available 24/7 in the early 1990s like it was to Liverpool for running trains ECS for the start/end of service. If it were, almost the entire route would've been worked by Nottingham since the early 1990s. The only other depots to have work on the route have been Norwich (AB signalling Ely-Norwich), Cambridge (diversionary route via Nottingham) and Derby (set up by EMT in 2008 to reduce the headcount at Nottingham and accomodate additional work from Birmingham, Leicester and Crewe depots).