Keep in mind these are some random thoughts, but...
1) House should stay on the roster (his bat is that good), but should not be as a catcher, 1B is where he should be.
2) I would prefer to see House at 1B and Berkman in RF, barring some trade the forces otherwise.
3) Huff will probably be re-signed. I just can't see this not working, but then when money talks, players often walk.
4) Munson will not be the #2 behind Ausmus, one of the AAA guys will.
5) I get the feeling Ensberg is not popular with the organization, for what ever reason. Therefore I see him being dealt this off-season, probably as part of a package to upgrade either SS or CF.
6) I see Scott being given the LF job, baring some FA like Lee joining, in which case he will either be a 4th OFer or trade bait.
7) I think the Astros are going to get "messed with" by Pettitte. I don't think it will be intentional or malicious, but I think he will not make up his mind on pitching next season quickly, thus potentially hindering the Astros off-season moves pitching wise.

I think, to-date, Pupura has done a good job as GM, and better than Gerry would have, IMO. Mostly because he has not sold off the future for a team that looks like it is missing more parts this year than it has.
9) I will judge Purpura a lot this offseason based on what FAs he goes for, and how aggressively he goes after them. I don't want to see the Astros be the last team to move again. I think it a big deal that they get one of the top 5 FAs, pitching or hitting, maybe both.
10) I think the bullpen will be mostly unchanged next year, and they will return to something close to what we expected this year. Their confidence is shot, but I am hopeful that time will solve this. That and I don't think there is much available on the FA market that is really any better than the potential they already have.
Ok, I think that is enough scatter shooting for now.