Pass.
If we are to get a “half” breed race, let’s stick with ones that has a population at any point in lore.
Half elves/humans
Half dreanei/orc
Half ogre/orc (mok’nathal)
I would like Halflings if they were similar to Everquest Halflings. They get their own town and houses that look like Hobbit houses. Big honkin’ hairy feet that usually can’t be covered by shoes (like trolls). And most of all, they can be druids.
The artists would have to do a good job to make them stand out from gnomes though (who aren’t the same at all, anyone who is into fantasy games and creatures knows that).
I have a strong hatred for hobbits.
imagine if you are sleeping and all the sudden you open your eyes and you see a hobbit staring at you 
Nope, all of nope, nothing else
Gnomes my dude… already in the game.
Burn it, burn the wretched thing!!!
what if it pins you down and tickles you and giggles LOL
You have gnomes as playable and skinny kul tirans slumming it for the alliance.
There your wish has been granted now please give me a donation of 50 gold.
what ifa gnome sneaks up on you and says BOO and then says they want hobbits to battle against
Feed him a skinny kul tiran
what if him and the kultiran teamed up and pinned you down
Then you still have dwarves.
what if a dwarf, gnome, goblin, and hobbit surrounded you and watned to make a 1/2 and 1/2
Then I advise treatment
what would you treat yourself with
The only thing that could help would be an over stimulus of gnomes so that you develop a healthy fear of them.
Next you will be freed of your torment and will deal with them appropriately.
With fire.
so if youhad 1000 gnomes all over you would yoiu not eb scared of them anymore LOL