HoN 3.0
And what I got from the discussion post in 4chan.org is, there are 5 heroes in the SBT client, and one of the hero in that screenshot is Gemini, also we will have Deadwood and Vindicator remake, Upgraded Version of Assassin's Shroud.Thats all for now.
Gemini/Artemis skills description :
1) wave of fire and ice that slows and does dmg over time, something like jakiros spell in dota.
2) You split into two and jump 800 range, after a jump you do some dmg and stun. ( it looks like tundras axes )
3) passive that you will do another attack that will deal 25% of your dmg.
4) ulti splits you into two fire and ice dog. both dogs have 2 a allmost same spells. Blink with a stun and does some dmg. Both can do wave of fire and ice. Fire one does dmg over time and ice one slows and does some dmg.
Fuente: Heroes of Newerth Blog