This thread is intended to let you know my thoughts as well as RuneScape gold my possibly more useful evidence. Don't read any further if you wish to keep this new skill a surprise.

General Premises: Facts about New Skill

This section focuses on three premises that should be taken into consideration by anyone who is trying to figure out the new ability. The first assumption is that the new skill is for both F2P and P2P (see evidence for second premise).

The second premise holds that the new skill was based on the fundamental gameplay mechanic of ThirdScape. This means that no matter what the skill is, it needs to be compatible with the entire game's dynamic gameplay. Evidence (RSOF QF 13-14-746-60289341; Mod MMG QA, question by The 39th Guy + MechScape Post #30 + statements similar to this):

Mod MMG: That's the same thing you said about Thirdscape. We are actually working on an entirely new game mechanic. I cannot give away too much, however, it could be an entire game, or just one skill. Or both. It will be members and for free. But, it's expected to be this year. It's an exciting feat and nobody has ever done it before so I won't give it away.

"Basically this was to be our 2010 game We had plans to create another -- however, we decided that this would tie perfectly to "RuneScape". The community would be thrilled, so let's add it to the game.

These are my questions: What are your plans currently in this regard? It's still on the right track and looked really enjoyable when I saw it last time. When will we see this? It will be soon. We'll be informed of it as soon as it occurs. I'm sure you won't be able to be able to miss it. Mod MMG: Yes, the new game mechanic and skill will be F2P.

I'm not able to say what's the new skill is either expect that OSRS buy gold it's not sailing.
Fourth, it's completely different from existing skills and popular trends. Nobody has ever done it before.