New Dota 2 Hero?

This is a bit late news for me. But this is worth the sharing to everyone.

There is a speculation of a new Dota 2 Hero. It was actually hinted on the last update on January 3. The updates have listed these items:

Particle Updates

• Added particles for “Spear Wall” of a hero internally referred to as “Mars.”

Heroes

• Added ability icon for Mars’ Phalanx Cancel

• Added ability icon for Mars’ Spear

None of these are known to anyone, thus the speculation of a new hero will be added, arises. There's also a picture that shows the spell icons of the alleged new hero "Mars".

(Source: Reddit)