The only problem as others have stated, is that Wereboars are native to High Rock.
Edit: That doesn't mean I wouldn't like to see them though

.
High Rock makes the perfect setting for a Skyrim expansion. That or a TESA (The Elder Scrolls Adventure) based on the engine, graphics and system of Skyrim.
The wildlife and and nature of High Rock is basically the same as Skyrim so it wold require less programming as much can be copy and pasted. It adds magic to Skyrim which is obvious more warrior based due to Nord society and lore.
The province is about half the size of Skyrim so it makes an adeal map size for an expansion or TESA that uses Skyrim's scaling. High Rock has already had TES II: Daggerfall (which was a city and not the entire province) so it won't be featuring in any game in the series anytime soon (I hope they don't put into a game in Hammerfell as I'd rather somewhere like Thras or Yokuda if they venture out), The province is too much like Skyrim so again i can't see anyone wanting to return there anytime soon. A game off the back of Skyrim considering the Nords were the first to input into High Rock's independence from the Aldmer all those many centuries back would be good. They could even unite with Skyrim in a civil war.
edit:
Seems like there are Werelions, vultures, crocs, and sharks too.
http://elderscrolls.wikia.com/wiki/Lycanthrope
werelions = Elsweyr
werevulture = Valenwood
werecrocs = Black Marsh
weresharks = No idea. I've just searched that it maybe just a rumour and may be a shark like creature out in the sea I think off coast of Hammerfell. Maybe Summerset isles even