Taming, Sailing, and Shamanism.
Old School RuneScape is pitching a new skill, and players are able to vote on which one they like best. Or none at all.
The core loop of sailing involves traveling to a port, obtaining a ship, and then taking that ship out for an afternoon of fun activities. Taming involves capturing and domesticating creatures in order to raise them as your new friends. Shamanism meanwhile is all about foraging for powerful components and then using those components to create items.
More information can be found at the official website.