I mean it's going to be full of things which aren't in the books so the only reason to put the LOTR name to it is a cash grab. There may be a few pages on this throughout Tolkien's works so it is rather little to go off in terms of being "canon". That said this is a war of men v men so the presence of orcs, goblins, Ents, wizards, elves, or dwarves would be unexpected and hobbits and the rings are uninvolved. But all of that has probably been shoved in...