I kindly ask that you improve the story-telling and story line in Legacy of the Void -- at least to Wings of Liberty levels. You did a great job with the HoTS expansion gameplay mechanics, balance (as much as this can be done), visuals, and cinematics. But, it doesn't seem that you devoted as much time as you needed to to the campaign and story line of HotS.
I'm a long-time fan of SC1, Brood war, and SC2. I very much enjoyed the story telling and the story line in Wings of Liberty - the story, albeit not shakespearean, was interesting. I legitimately wanted to complete each mission to find out what would happen next, and the choices presented in the campaign added a very cool twist. One could tell that a lot of effort went into the campaign's story - there were many jokes, fun twists, and plenty of next missions' ambiguity; the plot line wasn't very predictable.
LotV is another story. I've finished the campaign and it feels...stripped of many of the qualities of WoL's campaign. What happened to making choices? The evolution missions weren't bad, but they didn't add a lot of fun to the game. The entire story was rather predictable, the story telling was pretty bland, and the excitement for the next mission I had in WoL virtually disappeared in HotS. I can confidently say that many of my friends who play SCII felt exactly the same way.
It just doesn't seem that you guys dedicated as much time to developing the story in HotS as you did in WoL. Maybe it's simply more difficult to develop Zerg characters as opposed to developing human characters as you were doing in WoL, but a lot of the Zerg characters seemed empty. There was no one like Tychus, no feeling of meaningful (emphasis - meaningful) internal conflict between Kerrigan and her companions, no subtle feeling that something really bad/unpredictable would happen with Kerrigan (a la Raynor having to shoot his best friend), etc.
There simply didn't seem to be enough Kerrigan development; her quest for revenge seemed not fleshed out and too generic. If we were taken into Kerrigan's past, for instance, and learned of some other solid reasons for her hate for Mengsk, then we would have had the much needed addition to the revenge plot. Kerrigan was not developed to nearly where she needed to be. After WoL, I felt that I knew Raynor pretty well - after HotS, I couldn't say the same about Kerrigan. Honestly, the current story line was very predictable after the first few missions and it just didn't have enough development.
I know that critiquing someone's work is much easier than doing the work oneself, and taking critiques can be unpleasant. I applaud you for the polished gameplay, balance (this always evolves), cinematics, and game mechanics. I finished the HotS campaign on hard, and the difficulty was pretty good, at least for me. Lot of tension! However, again, I felt very let down by the story telling. I like the game, and if I didn't care, I wouldn't be writing this. I respect your work and have been a Blizzard fan since the early Warcraft days, but this story line needs a lot of work - let's bring back the excitement of SC1 and WoL!
What do the rest of you think about the quality of the storyline and storytelling (not the actual gameplay, which is superb)?
--Disclosure: I am a very casual gamer and play very little SCII multiplayer.
I've found that many people agreed with my initial feeling on the HotS campaign, and so I decided to post this post.