Just checked their official forums and no reply yet to a topic asking the same thing.
Found this. Someone cut and pasted the description on the sony site before all the problems people are having with not being able to access it now. It shows remote play as one of the features on the list though.
"Warframe® PS4
Digital Extremes
PSN Game|Released Nov 15, 2013|
Description
Ninjas Play Free. They were called Tenno. Warriors of blade and gun Masters of the Warframe armor. Those that survived the old war were left drifting among the ruins. Now they are needed once more.
The Grineer, with their vast armies, are spreading throughout the solar system. A call echoes across the stars summoning the Tenno to an ancient place. They summon you.
Come Tenno, you must join the war.
www.warframe.com
Video output in Full HD 1080p requires 1080p native display.
Additional hardware required for Remote Play.
Use of PSN and SEN account are subject to the Terms of Service and User Agreement and applicable privacy policy (see terms at sonyentertainmentnetwork.com/terms-of-service & sonyentertainmentnetwork.com/privacy-policy).
1 player
Network Players 2-4
1 minimum save size
DUALSHOCK®4
Remote Play
1080p HD Video Output
Online Play (Required)
Purchase or use of this item is subject to the PlayStation®Network Terms of Service and User Agreement and this item's use restrictions. This item has been sublicensed to you by Sony Computer Entertainment America.
©2013 Digital Extremes Ltd. All rights reserved. Warframe and the Warframe logo are registered trademarks of Digital Extremes Ltd.
Owners of the PS4 Pre-Order version are entitled to download the PS4 game for free when it comes out on PS4 together with the PS4 pre-order DLC bonus."