Is HTML5 going to replace Silverlight?

Is HTML5 going to replace Silverlight? Windows 8, facts and rumours from TechRepublic (with various links to other sources):

http://www.techrepublic.com/blog/programming-and-development/windows-8-native-apps-and-html5-facts-and-conjecture/4313

And, a quite unusual turn around from Microsoft ... C++ Renaissance, I guess as a reaction to Object C:

http://channel9.msdn.com/Shows/Going+Deep/Craig-Symonds-and-Mohsen-Agsen-C-Renaissance
http://channel9.msdn.com/Shows/Going+Deep/Mohsen-Agsen-C-Today-and-Tomorrow
http://blogs.msdn.com/b/somasegar/archive/2011/06/15/targeting-heterogeneity-with-c-amp-and-ppl.aspx