Dungeon Defenders Eternity was announced on Steam offering the following description of what is new from the original game (italics mine):
New Missions - Play the best maps from the first game, plus four brand new missions with more to come for free post-launch!
New Features - Visible armor, pet hatching & abilities, crafting, dodging, consumables, weapon-swapping, spellbinding, "permadeath" mode and a whole lot more!
Secure Online Play - No more hacking! Eternity runs on playverse's secure dedicated servers, so other Defenders can’t cheat their way to the top.
Rebalanced & Retooled - Our young heroes have an entirely redesigned loot system that fixes major issues from the original, giving them a fairer fight against the Old Ones’ rebalanced army!
Cross Platform Play - Take your heroes with you on the go and defend Etheria at anytime, from anywhere, with anyone! Download the Android version for Nvidia Tegra first, then stay tuned for an expanded launch on more Android devices, iPhones, and iPads later this year!
Does the new game include all the maps from the original? What about DLC maps, characters, items, etc.? What are the 4 new maps? What does it mean when talking about rebalanced loot system?