I think it's obvious they were. Or like Fossil suggests, they most likely had planned High Elves for later and didn't want to spill the beans, coming out with VE first.
I was already saying back then that it most likely sounds more convincing to come out with something like Void Elves first, then come out later with High Elves. It's the same thing that happened with Dwarves, where Dark Iron came before Wildhammer.
I also think VE were a big mistake because, as I've said this before too, the High Elf request was never as organized/prevalent until Void Elves came out. They ignited the request, because the same statements made to apply against adding High Elves applied to Void Elves even more so. As I, and others (including Taliesin) were saying.
Thanks to the organization of people like @
Traycor and @
DeicideUH and others like those in the High Elf Discord, Official Forums, and elsewhere. We get to celebrate after just a few years.
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I was already saying very long ago that it will sound more convincing to your bosses to come out with something more different first, then add in that request that isn't that much different later.
I'm sure Obelisk Kai can attest to that as well as I kept telling him that and he would hit back with "well what would be the point of adding Void Elves in the first place". Which I've already answered above.
It's the same vein as Dark Irons and Wildhammer.