An idea I had which won't go away is that a 10 year old Draco Malfoy finds Voldemort's diary and has his life force entirely drained by the soul fragment so it can gain a corporeal presence. From this point the now corporeal Horcrux, due to pre-set commands, searches for and finds the spirit of Voldemort in Albania and is willingly possessed by it, giving Voldemort a body, but a weak one due to it not really being human. Voldemort returns before Harry even gets his letter and the Order of the phoenix feel they have no choice but to bring Harry in for immediate training to protect him. Harry never meets his friends and becomes a man driven simply by the need to destroy Voldemort.

Now I have no idea if that's a good one or not but I just felt like I had to get it off my chest. I'd write it myself but uh....*coughs something about being beyond awful at writing*

 

Sounds like it would end up basically being Learning to Breathe, with Harry being the ultimate soldier who has no purpose once he kills Volde and has to go to Hogwarts despite being one of the foremost magic users in the world.

 

I always liked the idea of a Voldemort who gets his body back earlier than Canon.

Dumbledore is convinced the power of love is the key to defeating Voldemort. Love wouldn't work if Harry is an emotionless weapon. I am sure Dumbledore would want Harry to go to school when he turns 11 and make friends.

The plot bunny said Draco is 10, so Harry can learn some magic for a year then go to Hogwarts. He would be ahead of everyone, but he would go to class get his grades and train at night with his tutors.