Upvote:4
Am I good to go back home without waiting for the approval of my i539? or do I need to wait for the approval and do the biometrics?
You are good go leave the US while your I-539 is pending. You do not need to wait for I-539 approval or biometrics. Your I-539 will be automatically abandoned.
will my tourist visa be voided if I did not do the biometrics?
Your visa will not be voided if you leave the US while your timely-filed, non-frivolous I-539 is pending (i.e. before a decision is made on it). See 9 FAM 302.1-9(B)(1)(c)(4)(b):
[...] In addition, if an alien departs after the date on the Form I-94 passes, but before his or her application for extension or change of status has been decided by USCIS, they must be subject to a blanket exemption from INA 222(g), if the application was filed in a "timely manner" and is "nonfrivolous" in nature. [...]
Can I still come back here in the US in the future without any problems?
As always, there is no guarantee that you will be able to enter the US on any particular trip.