Film Score Daily is reporting that French composer Alexandre Desplat will be composing the score for Harry Potter and the Deathly Hallows: Part 1.  Alexandre would be the 4th composer for the Harry Potter films, the others being John Williams, Patrick Doyle and Nicholas Hooper.

He has become the director-of-choice for many of the world’s most acclaimed directors, including Fincher, Stephen Frears, Terence Malick and Roman Polanski, and has signed for one his most challenging and highest-profile assignments yet, the penultimate entry in the Harry Potter saga.

Thanks to SS!

Update: Thanks to Mugglenet this is now confirmed!