The developer of the upcoming Windows 10 UWP app for Disqus says that an open beta test is 'coming soon' and also posted an image of the app via Twitter.
Ryan Valentin, the developer of the Windows 10 Disqus app, confirmed that it was "coming together quickly now". He also confirmed the Mobile version will be made available at the same time as the PC Windows 10 app:
Disqus, which offers a comment system and online discussion platform for websites, launched its first mobile app for the Windows Phone platform, ahead of its Android and iOS counterparts, way back in 2013. It has added a number of features since then and is now on version 3.0.
Thanks to Windows10Lover on Twitter for the tip!