We've tested the current official Novell Client for Windows 8 on Windows 10 Pro Insider Preview Build 10130.
Although earlier preview builds of Windows 10 worked fine with the Novell Client, subsequent builds introduced several issues. Both during installation as well as functionality. Microsoft has confirmed it's a regression on their end in build 10130 and that it will be fixed in a future build.
Therefore today we've tested with Windows 10 Pro Insider Preview Build 10147. This shows different results, Microsoft indeed has fixed the issues Novell has reported: