He's the same workaholic (slightly pompous) prat you remember and is still working in the Minister for Magic's office as Junior Assistant although he's been sidelined a bit due to his family connections and feels like he's constantly watched. He does the records keeping, filing, and general secretarial work and deep down isn't as fulfilled by his work as he always thought he would be. He's also very stressed and has taken up smoking and occasionally even has the odd drink after work. (Hey, don't mock, for Percy drinking on a work night is the height of rebellion!)
Percy keeps his head down at work for fear of drawing attention to himself - it took him a long time to realise he had chosen the wrong side but still stays neutral. This is out of fear - both for himself, his family, and fear that he wont be accepted back by his family if he should return. He's also a stubborn arse who doesn't want to admit he was wrong.
Talking of his family, Percy is still estranged from most of them, but does see his Mum regularly (if this fits in with the other Weasley's of course) - whether this is a secret or if the rest of the family knows is up to the other Weasley's.
Percy finds it hard to make friends and is pretty awkward socially, but he is very loyal to the friends he has. He's also gay and hasn't dated anyone since Penny at Hogwarts. He's just busy concentrating on his career okay! He isn't repressed or lonely or anything like that - honest.
I'd love to have friends, co-workers, enemies - anything for him really! (And if anyone was thinking of picking up Penelope Clearwater or Oliver Wood I might just love you forever!)
You can contact me at marcusflinty on AIM or at my friendslocked contact post where I've listed my email or you can drop me a comment. If you're interested you can read Percy's character sheet here.