With all these possible orders beginning to trickle in, I wonder if we see any sort of trend in regards to -100 vs -300...
Pretty sure, there will be a strong trend in direction of the A220-300. But there will be always few orders for the A220-100 by airline, who will need the benefits of the -100 version, the ability to land and start on shorter airstrips and under hot and high conditions. As example Air Vanatu, they have ordered 2x -300 and 2x -100, because they will need some -100 for some of the airports during their island hopping. Without the -100, they would not have ordered the 2x -300, instead something else.
Something totally different: New China Tour is in schedule/in planning.
Airbus keen for A220 demonstration tour in China
After the A220 World Tour last year with the A220-300 from airBaltic (Zhuhai Airshow (China) 05 to 09-Nov-2018, Chengdu (China), 09-Nov-2018, Koh Samui (Thailand) 10-Nov-2018, Kathmandu (Nepal) 11-Nov-2018, Istanbul (Turkey), 12-Nov-2018 back to home airport on 14-Nov-2018.
There was an unofficial tour in Europe with one A220 from Swiss, booked by Airbus for a few days in spring, UK and the Scandinavia (Air France and IAG were there and others).
And of course the Asia Tour this year with the A220-300 prototype in Aug-2019. (unofficial first stop: Seoul’s Incheon Airport), Yangon (Myanmar), Hanoi (Vietnam), Bangkok (Thailand), Kuala Lumpur (Malaysia) and Nagoya (Japan) before back to Montreal.