I e-mailed to ask and received this response:
"Thank you for your e-mail regarding the National Science Foundation (NSF) Graduate Research Fellowship Program (GRFP).
At this time, there is no information available regarding potential changes to the GRFP award process. Awards will be announced in April by email. If there is a change that warrants notification to the community, it will be provided as soon as possible.
Please e-mail us at info@nsfgrfp.org or call us at (866) 673-4737 (toll-free from the US and Canada) or (202) 331-3542 (from international locations) if you have any further questions."