Blizzard’s stance on old-school servers wasn't always so eager but evolved due to fan demand and the arguments presented in their favor. Somewhat infamously, Brack himself said “you think you do, but you don’t” in regards to the desire to play older versions of WoW back in 2013, and the internet hardly let him live it down until he personally announced World of Warcraft Classic at 2017’s Blizzcon. So does the sentiment that you can’t go home again still hold water in regards to WoW Classic?
“We talked about it [making Classic] for a number of years and we couldn’t figure out what the right way to do it would be,” Brack explained. "The problem was, the codebase that shipped with WoW and encompassed the WoW Classic timeline was a codebase that we had really moved on from in subsequent years. Software is a very iterative process, and its development was more than 10 years in the past at this point. So thinking about the hardware that didn’t exist anymore that we would need to run on it, running two MMOs simultaneously with two different toolsets, two different toolchains, it was not something we could really get our head around.”
Travel Time is what you will be doing the most of, thus talents or abilities that increase movement speed will likely have the highest impact on leveling speed.The more important concept is this: Shaving off seconds of downtime between pulls is equally valuable to shaving off seconds of In Combat Time. When you think about it this way, Damage Mitigation and Regenerative talents / abilities / stats have almost offensive properties and should potentially be valued equally to stats that increase damage.