You assume the right thing (and reading the announcement for Runewars will tell you the same)
If it plays anything like Battlemist (feel free to read the rules in another thread) you will get everything you love in your 4 X Games.
Explore (Sending Heroes to Complete Quests to gain Powerful Artefacts or Dragonrunes)
Expand (Area Control (for better Exploitation and Dragon Runes) and Army Building)
Exploit (Gather Resources, Build up your Towns and Citys)
Exterminate (Wage war against your neighbours, and gain Dragon Runes)
As always Diplomacy in multiplayer matches (2 to 4 player) is part of the Metagame. (and Poltics part of the Main Game (at least it was in Battlemist (and Twilight Imperium)))
If you thought mhmmm Twilight Imperium with more direct confrontation (and faster gameplay): This will be for you.
If you thought mhmmm Starcraft with a neat Fantasy Setting and refined and deeper Gameplay: This will be for you.
If you thought mhmmm [Enter Warrior Knights/Game of Thrones/Warcraft/etc] yaddayaddayada: This will be for you.
If you thought mhmmm Fantasy Flight Games produced another Big Box Sized Game for 100$ : at least check it out