I followed this a bit through the Rock, Paper, Shotgun coverage and being a big Fall From Heaven fan it piqued my interest so I actually pre-ordered it. Overall I liked it quite a bit, especially the dimensional portals, only got a couple of gripes:
- Repetative unit speech
- Replayability hit by being able to conquer other races cities. You can essentially play all three races in one game.
- Bit too easy. I can only manage about Prince in Civ, but in Warlock I cruised through normal and challenging and only found it got hard on the highest difficulty setting.
Those are the only major gripes I have, everything else about it I liked, especially the price (only £15).
One thing I think it really has potential for (assuming it gets mod tools) is getting a Warhammer mod. It's a 4X with a focus on war, with a robust magic system, the three starting factions just need minor tweaking (to represent Empire, Vampire Counts and Orc/Goblin and has the beginnings of Skaven) and the portals can be retasked to demonic incursions. The lack of a traditional tech tree isn't a problem and technological advancement being linked to getting bigger cities would actually work better than a regular tech tree in a Warhammer game IMHO. SInce Games Workshop seems focused on releasing 40K video games and almost nothing for Fantasy I think Warlock is the best base game for a Warhammer mod out there.