They changed Low TI map once (used to be Turtle Dungeon F1) and High TI Map twice, if I remember correctly (Used to be Detar's Treasury, then Pyramids B2?). They never changed HTI after they changed it to Moskovia Dungeon because
some influentmany people told them no to. Mid TI was never touched as far as I know. It's about time to change it...
From when I started playing High TI went:
Abyss Lake 3 -> Malangdo Dungeon (much QQ for it being super wide open) -> I think there was something else here but I forgot/unsure -> Moskovia 2 (people QQed hard) -> Pyramids (moc_pryd06, extremely bad map cause no way to dodge other parties than with gwings, it made a lot of people ingame agree that Mosc 2 was actually much better) -> Moscovia 2
And Mosc 2 is amazing if you do not walk in small stupid circles or keep backtracking. Minimap helps if you still don't know the map well enough. :u
I still hate Mid TI with it's looks-walkable-but-is-not-walkable-and-can't-be-casted-over-while-you-actually-can-cast-over-the-cell-that-looks-the-same-just-a-few-cells-further carp the most.
And I doubt that there will be any other map as good as Abyss Lake 3 for most people.