Hi ,
my case timeline :
10/2016 : hardship waiver application submitted to USCIS
3/2017: USCIS RFE
7/7/2017: USCIS sent the non USCIS advisory to DOS
7/12/17: DOS received I-612/613
my J1 will expire by the end of 10/2017
I don't know if I have enough time.