Since your I-485 application was filed in 08/04 , there may not be approval this year unitl next year or 2 years, but it could be approved quickly (due to the pilot program if the pilot program is working at California Service Center, Dallas BCIS, and New York BCIS). I don't think it would happen because your filing is not concurrent. right?
In my opinion, I assume you have a valid H1 visa and you have an EAD card, but you haven't used EAD yet. (don't use your EAD!) Then yes you can still appy for her h4 after getting married. There will be no problem to bring your wife with you after she gets her H4 stamping on her passport. Talk to your lawyer even though I am not a lawyer.
What do you need to do is:
1) Before you get married, get prepared to gather all documents including your documents, 2 original employment letters (one for embassy to issue h4 for your wife and one for her I-485), w2 forms, tax returns, paystubs, bank statements, etc.. Also fill out 485 form and EAD/AP form with your lawyer for your to-be wife (just prepare). Tell your to-be wife to gather her educational background such as degrees, certificates if available, her birth certificate, etc. Make sure to make copies of everything except employment letter (original employment letter is a must for both US embassy and 485.) then be ready to leave for India to get married. Good luck!
2)Then in Nov 2004 go to India, get married, and get a marriage certificate. then go to US consulate or US embassy to apply for H4 for your wife.
3) If H4 is approved and stamped, you and your wife can enter USA. When you and your wife enter USA, file her I-485/EAD/AP immediately (if you have a lawyer, that would be great).
4) Relax and have fun. Congratulations on your wedding.
Hope this helps.
USGC485