Sony is no match for Huuuge Games. The name alone tells you this.
You register the name first, you get the trademark. A bigger company can't just come in and shove a smaller one out the way.
Or we would get the Google iPhone or the Microsoft Playstation.
Sony will have to reach a deal to use the same trademark or change the name of either the Horizon expansion or pay this company to change their game name.
They can't both use it as Sony wouldn't be able to sell any merchandise or protect misuse of the trademark from knock off products if they didn't own it.