The lurker reappeared in StarCraft II, created from a hydralisk morph, but as of February 2010 and the release of the StarCraft II beta, is no longer in the game. Not long before this, internal testing had found that the lurker had been underutilized by players.
The lurker appeared at a higher tier than in the original game.
Some units get a hold fire command, however, as of March 2009 the lurker did not have this ability.
Lurker attacks were able to devastate groups of infantry. In addition, they could act as siege units, out-ranging conventional stationary defenses.
In terms of design, the lurker's form in StarCraft II was originally based on its appearance in StarCraft: Ghost. However, when the development team started their initial renditions, the lurker reverted back to a design more in sync with its form in StarCraft: Brood War. The design was established and a portrait model was generated, then the lurker was modified once again to match the portrait artwork more accurately. The final rendition made the lurker regain more similarities to the hydralisk while adopting the newer design elements established over the years. During development, some of its appearance was altered due to similarities from the roach.
A theoretical lurker inclusion in the game (prior to Legacy of the Void) would be useful for zerg players, as per their ability to attack while burrowed, and to push the zerg tech tree into tier 2. Lurkers countered roaches for cost, but roaches had the mobility advantage.
↑The developers say that Lurkers were taken out because their goal is to keep the unit count of the game as small as possible so that players know their choices and understand their enemy choices as well. They feel that the Roach uses the Lurker's burrow ability well, while Ultralisks and Banelings have the splash damage covered. Many units took over Lurkers’ roles over the period of development, so they didn't think they were as valuable anymore. But we all do miss them!
Well this is our point of view. I think that Lurkers should not really be Tier2 in the current build, because they don't really fit in there and they wouldn't really be a good counter to Roaches, given the fact that ZvZ is a very dynamic matchup and you would probably still prefer Ultralisks or Broodlords at T3. What do you think about it? Kapeselus. 2010-03-17. Blizzard please bring back Zerg Lurkers. StarCraft II Gameplay Discussion Forum. Accessed 2010-03-17.