New GOs can be really exciting, and I have 3 cases for which animals I think could be it
1. Roe Deer
Roe deer could make an appearance on this map, and a great one of this species could be a cool concept. Although there is a chance that Roe Deer wont make an appearance in Scotland, the same thing happened with Black Bears getting a GO when Revontuli came out. The Great One can have long curly, racks with some having spikes around it, like a combination of Great One Mule Deer and Great One Whitetail racks. The furs for it could be related to a certain theme that ties with the new Scotland map, like a Celtic Mythology theme. I think the Roe Deer is the favorite to be the new great one, but it could always be something else.
2. Wild Boar
We know that wild boar could make an appearance of the new map thanks to the leaks of the redesign in the feeders pack, so there could also be a chance for it to be the new great one. The theme could be more of a continental theming, with different furs aligning to the region of the continent, like an Arid like fur for Africa and a snowy one for Asia or North America. The tusks could also have different variations with some extruding out very long while others could have multiple extruding spikes on the tusks. The wild boar is a second best option for me, but not the clear favorite.
3. A new animal
It could also possibly be a new animal we don't know yet that's coming out with TTòrr nan Sithean, like how the Tahr was very new to the game with Sundarpatan and it got a Great One. Another possibility of a new animal coming with Tòrr nan Sithean could be either the European Badger or American Mink. Although I would like to speculate what theming for the great one could be for this new species, we don't have a lot of information about the new animals in the reserve, so Im not going to speculate the theming. I will post an update on which new species I think it could beonce the full species list is revealed