When the fallout eventually settles down I wouldn’t be at all surprised to see two eventual outcomes. The first is an MPL being the only direct “apprenticeship” route into those airlines with “approved” cadet programmes. This would only be a small evolution of what has been happening for the last decade in any event. The second (and wait for the howls of derision) is for an ATPL to be the minimum requirement for airline flying in either seat. That is 1500 hours and the hard licence. That is exactly the position with the FAA and it isn’t much of a stretch to see it being adopted everywhere else.