H1-B - F1 status change - I 539 decision

[ai88]

I am an Indian citizen and have been in the U.S for the past 8 years. I did my masters and then started working on H-1B. I have 2.5 years reaming on my H1.
In July 2017, I left my job and enrolled for my second masters in MBA from an Ivy league School and filed for a change of Status (I- 539)
with the USCIS. Till date, I have not received any decision on my application and hence I booked tickets to go to India to get my F-1 visa stamped next week.
However, last week i received a mail from USCIS, saying that your decision will be communicated in the next 45 days. Now I am unable to decide if I should wait for the decision while staying in the U.S or just travel to India to get my F-1 stamped?
I am unsure about the risks involved while travelling to India. If anyone could help me understand, what should I do, stay in the U.S and wait for decision or travel to India next week, to get my visa stamped.

A catch here is, if I don't hear from USCIS in the next 45 days, or If my case goes into RFE, I wont be able to apply for my CPT to pursue a summer internship.

Any help/ advice is appreciated.

Thanks!