Hi Rama,
It is a limitation we’re very aware of. I’m going to try and explore being able to ship modular DLL/dylib-based games for the 4.5 timeframe. That would work the same way as the editor does - you have one DLL/dylib per module, which would allow plugins in content only projects. We do not have any support for dynamically loading modules on non-desktop platforms at the moment, and there is a concern that some platforms (like iOS) do not permit shipping titles with dylibs. I assure you that it’s on our radar though.
Ben