No, it wouldn't be straightforward to do that because the extra RAM is banked. MPAGD would have to spit out multiple listings and the user would have to manually assemble them individually then save them out as multiple code blocks, not to mention writing a BASIC loader program with some machine code to load the code files into the relevant RAM banks. Anyone capable of doing that is already capable of taking the existing assembly language listing and modding it to use the extra memory.