If you kick Urborg Repossession, you will correctly be allowed to deselect any unwanted targets prior to clicking OK.
A corner case involving Ivy, Gleeful Spellthief’s interaction with creatures already having ward will be corrected.
The fateful hour ability of Faith’s Shield will correctly function.
A player controlling Opposition Agent will be able to see their opponent’s hand while the trigger is resolving.
Note: MTGO will not be able to achieve 100% alignment with how tabletop implements this card – this is the last planned functionality update for Opposition Agent.