I hate Oompa Loompa's. Can't stand the little orange buggers...Oops, did I say that out loud?
Re: First Age miniatures. I seriously doubt we'll ever see a serious effort to tackle the Silmarillion
until a decent Film based on that book is made. GW wouldn't risk it unless they had some quality concept material i.e. a Film to draw on. After all, their best work has always been the models and material that were influenced by the film aesthetics. So First Age models are a non starter.
What I would like to see, in order of preference.
1. Evil Spirits. An evil, Angmar-centric equivalent to the Army of the Dead. (In which case the AotD should be relabelled Men of Dunharrow or whatever their city was called).
2. Werewolves. These I think should be more like Shape-shifters. Think of the Shape-shifting native American tribe in the Twilight Saga; the Dire-Wolves in A Game of Thrones; or even the real world, pre-historic Saber Tooth cat sized Dire-Wolves - basically abnormally large Wolves. BIGGER than even Wargs. And there is a precedence in Middle Earth with Beorn and his people who can transform into Bears. In that context, I imagine Werewolves as shapeshifters who come under the sway of Sauron, becoming evil and more
animal than human.
3. More options for Arnor. Maybe an Elite unit e.g. Royal Guards. Some cavalry perhaps. And a catapult, trebuchet or ballista (just because I think Siege weapons are cool
In fact I think there could/should be generic siege weapons for most races perhaps based on the mordor catapult and siege bow, the Battlecry trebuchet and Uruk Hai ballista. This could be in the form of a single plastic box, with extra bits (spikes, severed heads etc) to allow for variation).
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p.s people please stay on topic nobody here is being racist (plus its all fictional, if i said I hate hobbits im not racist) 
And remember this is Middle Earth, not Hollywood horror films. Tolkien may well have taken the term 'Werewolf' as a loose, catch-all phrase to mean things that can transform into Wolves. Just like with the Balrog and his 'Wings of shadow', 'Werewolf' may be more poetic licence than literal application of mainstream culture.