Regarding the copyright notice on NEM source code:
...
I believe it is necessary for the new file to read as follows:
The MIT License (MIT)
Copyright (c) 2013-2014 BCNext and the Nxt core developers.
Copyright (c) 2014 Jaguar0625
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), ...
Once we finalize the decision to rewrite or not rewrite, I'll update the license appropriately. I think in the case where it is a full rewrite, we don't need to change the license.