回复：H1 visa and 180days gap problem

wait until you get the results. The H1 was correctly filed with premium service so you will know the result soon. What date was his last employment or paystub according your evidence responding to the H1 RFE, it is pos*****ile the H1 will be approved without I-94, then he will have to reenter with H1 visa. Also your F1 status is finished, what will you do? However, it is also pos*****ble that his F2 and H1 COS can be approved with I-94, in that case re-entry is not needed.