I just read that, fuck. Only hope is that the sequels, if any are made, are many generations later. But they would never do that, they'll want to keep the same lead actors. Best they could do is end with Thrall being born and taken captive, and make the sequel with him older.
Talk about taking something that has a lot of original value and turn it into your typical humans VS orcs movie. Doesn't matter what the visuals would be, as soon as people know it's humans and orcs, it's over. At least it should have orc wizards, which is a bit unexpected to the average-joe.
Does that mean no dwarves either? If none of the other races are there day one, it's going to be fucking stupid to bring a bunch of them in later movies, which means it won't happen.