Extra comment: I haven't seen the full Q&A so they may have addressed this, do maps only spawn 1 mechanic now? It's fine if they can only have 1 since it seems that individual maps will be shorter now, but if so it seems like there might be a problem when more mechanics from POE1 and future POE2 leagues are added. Also, the map device has 4 slots, yet the new tablet system seems to replace the function of scarabs or sextants so what do those do? Quite a lot to still learn.

Edit: checked the reveal again and maps definitely can have multiple mechanics on them.