Nedd we switching from Winforms to WPF? [closed]

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Is there is any need to pass existing (or developing) projects from WinForms to WPF? or even Silverlight?

If the project is OK, worth it to be switched in WPF? Can Silverlight replace WPF in the future?

I am asking because there a rumors that Microsoft will abandon WinForm (maintenance and support) for WPF and Silverlight. I believe Winforms will be supported as longer Windows will be?!...

Will the development of Winforms obsolete in a lot of years?

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Microsoft has certainly never said that, and there are new Winforms features in VS2010.

Consider the fact that their C++ UI technology from 1992, MFC, continues to be shipped, supported and extended with every version of VS.