The Company reserves the right, at any time and from time to time, as determined by its Board of Directors, to extend the expiration date of the Warrant Certificates one or more times ... at least 30 days prior to the then expiration date of the Warrant Certificates.
I didn't go much deeper into this issue but assume that the decision to extend the period can be done internally with no need to refile. However, if the warrant is allowed to expire or the striking price modified, then reissuing a new one would require an S-1/A registration.
My guess is that GS will extend the period 30 days prior, if necessary.