Since WoW Classic server has been announced at Blizzcon 2017, there is not much info about the server revealed. It is known that the upcoming expansion Battle for Azeroth pre-order has been available at blizzard shop, and the system requirements of Mac and Windows has been unveiled Recently, Forbes has an interview with J. Allen Brack and Jeremy Feasel about the project and some of the vision that developers have.
To gain gold in World of Warcraft, you will primarily be grinding professions which are fantastic for receiving rewards. Mining is an example of a great profession at an early-game level. While Herbalism is actually the best gathering profession, the issue is it uses consumables which can make the profession rather costly, with the investment required.
Classic WoW is the highly anticipated, upcoming (re) release of the original, first World of Warcraft version, known as Classic and by it's other popular ice-cream like name: Vanilla WoW. Dubbed Retail Classic, or Official Classic by the playerbase - it was finally announced by Blizzard in November 2017, after a lot of pressure from the Private Server World of Warcraft community, since the latter's shutdown of the most popular Private Server called Nostalrius which featured the first WoW version in two separate PvP and PvE servers.