Vanilla is more difficult than WOW TBC Gold vanilla, and there will be no wbuffs, or higher level bosses to fight. Many players complained about how MC is ridiculed as a joke. This has been rectified to some degree. The developers are now reportedly fixing mage boosting. This should improve the world's interaction and increase the quality of the leveling experience.
Many "Classic" players want #nochanges. Classic+ isn't Classic, and it could only appeal to those who don't like vanilla. Modern MMO players cheap WOW Classic TBC Gold will want an updated design, while older vanilla players would prefer a basic design and the best option is "no modifications" because they're bad in the game...