This next portion I can't confirm and is mainly speculation.
I think since in M15 they showed us Nissa, Worldwaker again and confirmed that two of the Eldrazi titans have left Zendikar. Emrakul, the Aeons Torn & Kozilek, Butcher of Truth
The Eldrazi may be headed to Temur Frontier.
Also explaining why Sorin, Solemn Visitor is there.
Then Nicol Bolas, Planeswalker in the 3rd set is going to come fight Ugin.
Ugin may attempt to seal the Eldrazi away once again which will anger Bolos therefore starting the fight.
Obviously I may be incorrect but I really hope we see Ugin the colorless planeswalker.
It would be so badass.
I believe that she will end up fighting these last 2 demons but right now you cant really know.
One thing though, will she actually fully regain her soul if she does kill the last 2 or will she still not possess it?
I have read more of the lore and you are indeed correct. Zurgo Helmsmasher is not a fan of Sarkhan, the Dragonspeaker so I have changed the description. Sorry about that.
Ugin died in the past battle against Nicol Bolas, Planeswalker. Shown in Witness of the Ages
Sarkhan, the Dragonspeaker starts to hear Ugin's voice. Shown in Tormenting Voice
The voice leads him to Ugin's tomb. Shown in Tomb of the Spirit Dragon
I think Sarkhan, the Dragonspeaker is going to talk with the Temur about Ugin's Nexus and the time rift that seems to be there.
As it is though, Zurgo Helmsmasher will attempt to kill Sarkhan, the Dragonspeaker. Shown in Despise
Then in Fate Reforged the time rift will bring us to a time where Ugin, who will be a Planeswalker, will be alive.
I personally believe Ugin will be Colorless.
Ugin's signiture was Ghostfire so it does give him some relation to Red as well though.
But what do you think?
So if you look at the new Khans of Tarkir cards and their flavor text.
Ugin died in the past battle against Nicol Bolas, Planeswalker. Shown in Witness of the Ages
Sarkhan, the Dragonspeaker starts to hear Ugin's voice. Shown in Tormenting Voice
The voice leads him to Ugin's tomb. Shown in Tomb of the Spirit Dragon
I think Sarkhan, the Dragonspeaker is going to talk with the Temur about Ugin's Nexus and the time rift that seems to be there.
As it is though, Zurgo Helmsmasher will attempt to kill Sarkhan, the Dragonspeaker. Shown in Despise
Then in Fate Reforged the time rift will bring us to a time where Ugin, who will be a Planeswalker, will be alive.
I personally believe Ugin will be Colorless.
Ugin's signiture was Ghostfire so it does give him some relation to Red as well though.
This next portion I can't confirm and is mainly speculation.
I think since in M15 they showed us Nissa, Worldwaker again and confirmed that two of the Eldrazi titans have left Zendikar.
Emrakul, the Aeons Torn & Kozilek, Butcher of Truth
The Eldrazi may be headed to Temur Frontier.
Also explaining why Sorin, Solemn Visitor is there.
Then Nicol Bolas, Planeswalker in the 3rd set is going to come fight Ugin.
Ugin may attempt to seal the Eldrazi away once again which will anger Bolos therefore starting the fight.
Obviously I may be incorrect but I really hope we see Ugin the colorless planeswalker.
It would be so badass.
Any feedback would be great.
Hopefully Ugin is colorless.
He has already been dual colored so it is possible that eventually become 3 colored.
Especially the M15 set let us know that 2 of the titans had left Zendikar.
They are probably headed to other planes.
Maybe he will become Liliana's puppet.
One thing though, will she actually fully regain her soul if she does kill the last 2 or will she still not possess it?