CRM 2015 Available for Download

Installer can be downloaded from Microsoft website now, apply below trial keys

Microsoft Dynamics CRM Workgroup Server 2015 (5 CAL limit): 
XY8GN-DF2MC-FV482-YM9YP-HH6H2

Microsoft Dynamics CRM Server 2015 (no CAL limit): 
C6BDP-T6NK9-8TXJP-36WTB-TXW7V

Links :

CRM Server 2015 
CRM 2015 Outlook Client 
CRM2015 Email Router
CRM 2015 List Component for SharePoint 
Report Authoring Extension
Language Package