At least there is acknowledgement of a need for training. that has only taken a little while to permeate through granite like opposition.
An A330 sim changes to an A340, the differences between the NG and MAX for a sim are less, but the displays would be a pain. Making a combi might make sense over time, but in the short term, it is a complication on making Max sims for the masses. QTG data would be interesting to look at, as it would need to show on/off for MCAS presumably. That would answer a lot of interesting questions.