Some nice additions
Boeing has "soft launched" the 737 MAX 10, meaning that if it receives orders it will be build (which I believe is the AWS prerequisite).
Would make for a nice addition in the longer gameworlds, *hint* current gw3 *hint*

Manufacturer Boeing
Fleet group Boeing 737-600/700/800/900/MAX
Model Boeing 737 MAX 10
Size class Large aircraft
Project launched 07th March 2017
First deliveries 2020
Area of production United States
Description "The 737 MAX 10 is a development of the 737 MAX 9, having a stretched fuselage and lengthened landing gear."
Cruise speed Mach 0.78 / 447 kts TAS
Runway requirement Slightly more than MAX 9, but not too much due to trailing link MLG(@ MTOW)Turn-around time 40 mins
Minimum crew Pilots: 2, Cabin crew: 4
Seating configuration Y: 174, C: 15, F: 0 (Factory default), Maximum 230
MTOW Slightly more than MAX 9
Payload Slightly more than MAX 9
Range 3100nm
Average fuel burn Slightly more than MAX 9
List price Slightly more than MAX 9
Italics mark "uncertain values"
https://www.flightglobal.com/news/articles/boeing-unveils-first-image-of-737-max-10-434859/http://www.b737.org.uk/737max10.htmhttps://twitter.com/jonostrower/status/839536382682914816Also while I am at it the 737 MAX 200.
It's the same as the MAX 8, however it has a different exit configuration allowing for a higher amount of passengers (in high density seating).
http://www.b737.org.uk/737max.htm#200And let's not forget the A321LR
Manufacturer Airbus
Fleet group Airbus A318/A319/A320/A321
Model Airbus A321LR
Size class Large aircraft
Project launched 21st October 2017
First deliveries 2018
Area of production Europe (joint project)
Description "The A321LR is a long range medium sized aircraft intended to open new smaller routes over longer distances."
Cruise speed Mach 0.79 / 450 kts TAS
Runway requirement Slightly more than A321NEO(@ MTOW)[/i]
Turn-around time 40 mins
Minimum crew Pilots: 2, Cabin crew: 4
Seating configuration Y: 186, C: 15, F: 0 (Factory default), Maximum 240
MTOW 97000kg
Payload Slightly more than A321NEO
Range 3900nm
Average fuel burn Slightly more than A321NEO
List price Slightly more than A321NEO
https://leehamnews.com/2014/10/21/exclusive-airbus-launches-a321neolr-long-range-to-replace-757-200w/http://aviationweek.com/commercial-aviation/airbus-launches-long-range-a321neo-version