Hoi,
Today the Sanskrit Wikisource will get WebFonts support. The Sanskrit Wikipedia already has it for some time and it works well for them. 

What will be different is that in the Wikisource, it will be possible to have original texts in the script as it was of at the time of first publication. According to the English language Wikipedia article and according to the Omniglot website Sanskrit is written in many scripts.

When you google for the Brahmi script, you will find several fonts that are freely available. What is needed for us to use it in the Wikimedia Foundation is that these fonts are freely licensed and, that they pass the technical requirements of the Localisation team. Obviously when a font is available in WebFonts, it is available in any wiki that has WebFonts enabled.
Thanks,
    Gerard

http://ultimategerardm.blogspot.com/2012/03/sanskrit-sources-and-scripts.html
http://ultimategerardm.blogspot.com/2012/03/sanskrit-wikisource-will-get-webfonts.html

PS from my blogposts you will appreciate that there is an evolution in the awareness of what WebFonts can do for you :)