One thing that becomes more and more important (and critical sometimes) is taking into account point of origin in availability searches. I don't have a solution unfortunately, in GDS POI seems to be only taken into account when an availability search is requested from an existing confirmed booking file.
However, i am sure there is a way to model this via APIs etc.
As a side note: this fact stands behind many discrepancies in availability that people complain about (but not all of course).

Also married segments availability alerts is something the previous team was never able to develop. Might be something simple for the new EF Team.

Thanks in advance!