as of now the trial will take place and there is a possibility that you can get acquitted.
There is no hurry if other family members, if any, are all in bail the trial will go on without your presence.
If you are not planning to visit India soon no need of hurrying to file a quash petition.
To file a quash petition your presence is not needed.So if you plan to file a quash petition based on your innocence as there is no material to prove that you are guilty, go ahead and file for it, entrust your lawyer.
petition under 482 Cr.P.C is not always granted, so if court allows it good other wise it is not going to affect you in any manner.
So discuss with your lawyer and decide for it , it is sure and certain your presence is not needed to file a quash petition, the simple reason is that you are working in US and not able to get leave.