I'm going to go out on a limb here. Since angry villagers haven't shown up at Groundspeak HQ with hay forks and torches demanding the old maps, it won't happen. If a majority of users can navigate the new maps problem free, why switch back to placate a few with problems?
Now, that doesn't mean that they shouldn't fix the issue, but they must feel that there's no valid reason to revert to the old maps or maintain a dozen different map intefaces (all with hooks into the database) while the last few kinks are worked out. As one of the users with problems with the maps, I think that sucks. As an IT systems guy, I see the value in their position.