(Image credit: Activision Blizzard) Ever since Blizzard released World of Warcraft Classic (and maybe even before), players have been begging for it to take a version of the old MMO and experiment with it. This proposed "WoW Classic Plus" wouldn't follow the timeline of updates the original MMO did, but veer off in a new direction as if it were a modern game—much like Old School Runescape. With no major WoW Classic releases announced, WoW Classic Plus believers are convinced their time is almost here. Blizzard recently invited a bunch of well known WoW Classic creators to California for something none of them can talk about until an NDA is lifted. As far as I can tell, this hasn't happened before and is, at the very least, compelling evidence that Blizzard is working on something that isn't just another expansion re-release. "I did just get approval to say that I will be gone a little bit next week," WoW creator Xaryu said during a recent Twitch stream , smiling as his chat exploded with "Classic+" messages.…