You think too much.
During your J1 was approcing, you still can extend your J1 visa. It is better to send to INS (not 领事馆) after you get new J1 form. 领事馆 only provide a "non-objection" letter for you.
During your J1 was approcing, you still can extend your J1 visa. It is better to send to INS (not 领事馆) after you get new J1 form. 领事馆 only provide a "non-objection" letter for you.