New standard(s) for web UI?

What is going to happen in next 3/4 years? Are we going to have unique standard for 'everyone' :

XAML(http://www.xaml.net/ and http://en.wikipedia.org/wiki/Extensible_Application_Markup_Language)
UsiXML (http://www.usixml.org)
UIML(http://en.wikipedia.org/wiki/UIML)
jUMIL(http://sourceforge.net/projects/juiml)
XIML(http://ximl.org/)? Is XAML will get new(or other) name like nUMIL ?(where are you Mono?)