With games that focus on competitive multiplayer, I understand the desire to keep the remaster simple. I agreed with most of the changes in, for example, Super Street Fighter II Turbo HD Remix (what a mouthful), but most purists didn’t like the adjustments from David Sirlin and company (the lack of an arcade version also hurt its chances among Japanese players). Limiting gameplay changes results in less work and more of a crowd-pleaser, because if adjustments are made, players would debate the specific adjustments constantly.
My main point of interest is how Blizzard handles hotkeys for the remaster. StarCraft II hotkeys are fully customizable and the default keys are overall more intuitive, but StarCraft hotkeys were fixed and worked with the logic of “what letter does this unit/building start with?” rather than “what letter could be associated with this unit/building AND is easily reachable?”
I figure Blizzard will do the risk-averse thing and keep the weird old hotkeys, but if any gameplay-related change happens it’s probably that.
As for actually playing StarCraft Remastered, I don’t think I’ll do it seriously, but I might try it for a nostagia kick.