ABC routes will most likely return in v.1.3; but only if it's allowed in real life in that area. In other words any domestic sector, or intra-EU after the cabotage was allowed (special cases like Singapore Airlines SIN-MXP-BCN etc.etc. will NOT be coded; see 'rules of air' topic).
This is the wonderful news!!! I am waiting for this news since the beginning of v1.2 which blocks the ABC routes.
How about this one:
Case 1: A China-based airline, is it allowed to have PEK-PVG-SYD (the first sector is domestic while the second sector is international)? In the reality, it is allowed.
Case 2: Or how about ABC routes for three difference countries / region? Say,
HKG-BKK-SIN (one of the current CX routes), will it be allowed? In the reality, this sector (involve 3 different countries/region) is also allowed, while the sector in a different country to the based airline (e.g. Australia-based airline operate PEK-PVG-SYD) is not allowed.