I am not sure, if you are in STEM degree, I heard they are going to cancel 27 OPT form coming year. All F1 students will have 12 months OPT. I hope it is beneficial to you, if you apply TPS on Nov/Dec and get TPS with EAD. TPS EAD will allow you to work anywhere in any company, your student OPT EAD will allow to work only on the discipline you graduated on.