The post links to CFP as the place to submit a proposal for UpSCALE.  
But there is no info on CFP page that says anything about UpSCALE or 5-minute talks, or the deadline and acceptance timeline for UpSCALE.
I would suggest either editing the CFP page so it applies to UpSCALE, or coming up with a separate UpSCALE CFP page.
Lan
      
 From: Ilan Rabinovitch <ilan@linuxfests.org>
 To: SCALE Planning List <scale-planning@lists.linuxfests.org> 
 Sent: Tuesday, January 24, 2017 11:00 PM
 Subject: [Scale-planning] UpSCALE Talks