@JanG to answer your immediate question: at least the Atlantis loot increase will be preserved, and it seems like the appearance chance of a dragon/gnome will remain the same
The Beta Beat (V52) – New S1 Costumes, Gargolyles, December HoTM, S5 Hero -- Sharing the Big Picture on What's Going on in Beta Gameplay Help & Tactics
Yes. Atlantis Coins are still guarnteed and the +50% loot too. This Lure thing just adds more coins, and better chance to find a Dragon.
this thread might be interesting for you, to follow, re Atlantis Rising.
Well here it is… Curious if the adjustment will be identical with the limitation we have seen in beta (pretty sure) or if it’s something different they didn’t test (doubt)