Does anybody know something about the future of Arabic typesetting with LaTeX or LuaLaTeX? Do they develop tools and mechanisms for scientific typesetting of Arabic text? In other words: is it still worth the effort to work with packages like ledmac, ledpar or ledarab (or whatever) to typeset Arabic texts? Or - because theses packages are still maintained - will they be adjusted to the new developments. (AFAIK the basic file structures of ledmac are from 2005...)
What about the general implementation of Arabic into LaTeX and LuaLaTeX? If Khaled Hosny hadn't helped me, I'd still be unable to typeset Arabic text.
I've been wondering about questions like these, since I've found this document (cf. chapter XIII) months ago but never any documentation nor news about progress or status or usability.