To be honest, a few of the effects seemed a bit pre-production, to clarify, I was talking more of re-creating the Tron universe than the altered Flynn. I actually, at first glance, just thought it was someone who looked a bit like Jeff Bridges did when he made Tron, didn't realise it was actually Bridges face re-mapped, but now you mention it, yes, I see what you mean, the face isn't nearly 'alive' enough, that's probably why I thought it wasn't Bridges.
As for the music, I'd love to hear a more modern take on the original Tron stuff (mainly the gorgeous title music at the end of the film), I have suspicions it will crop up, they've resurrected just about everything else...