little reason to continue even with XeTeX. Just for the record, even in the hypothetical future where LuaTeX has caught up to XeTeX in terms of system font access and Arabic typesetting, Jonathan K once spoke to me about another reason why XeTeX will very likely always have a place: good typesetting of other minority scripts. Since everything in LuaTeX is being programmed from scratch, it seems highly unlikely it will ever support the variety of scripts that ICU et al. do.