While Paul takes a deep dive into the WoW's game's WOTLK Gold design, the game's class designers had an AMA on Reddit that you can view here.
P2Pah: What was the timing for this update, which was released in E3. Did that happen intentionally? Perhaps it's because this is the appropriate time in the development calendar to push out the update? Or do you feel the different audience is that E3 has a more console-centric look and feel than what hardcore World of Warcraft players are looking for?
I don't think we really thought about it all that much. In Legion I, we had a fairly comprehensive plan of making sure that we'd see a lot of patches released; many times, we had to wait for the content train to leave the station. Whether that particular patch was offering a brand new outdoor zone for questing or a fresh raid, or simply the addition of addition of content to the game or class upgrades such as what we're seeing a lot on in the patch 7.2.5. We were aware that these patches are expected to come out frequently, so 7.2.5 was just a matter of timing. It ended up landing around that E3 date, but it's probably more coincidence than any other thing.
The result is that it's a routine release of content. It must feel like you're nearly on a well-oiled cylinder at this stage.
The feeling is somewhat oily. There's much effort involved in every patch regardless of size and yes, we're really happy that we are able, up to this point have plenty of patches. 7.2 was not that long ago; we just landed at Broken Shore, and have been pushing towards The Tomb of Sargeras. As of 7.2.5 we'll be able to see the raid officially opening and buy WOW WOTLK Classic Gold some other little fragments of content being added the same way, whether it's a Chromie scenario, some fresh micro-holidays that are new, brawls and so on.