It is highly unlikely this will occur. It has been suggested before that other versions of mIRC are released, like "bot versions" and, indeed, "lite" versions.
If Khaled hasn't got the time to port mIRC to other operating systems then he most likely doesn't have time to make lite versions of mIRC - it's not as easy as just deleting the DCC section of the code, the options dialog, and hey presto we have a lite mIRC. This would produce a whole bunch of other bug reports and (kind of ironically) feature suggestions.
Regards,
