babel now? It is said on CTAN that Johannes L. Braams is no longer active on this package. I'd like to contribute
babel's support for Russian in LuaLaTeX.
The right contact for language related issues in LuaLaTeX might be Arthur Reutenauer who just took over development of Polyglossia. Polyglossia has not been ported to LuaLaTeX yet, but it should only be a matter of time until it gets ported.
(Of course you may also submit your babel files to CTAN as long as they don't break pdfLaTeX.)