Unless we have a direct source for a study or a call for proposals to do such - can we stop discussiong rumors or pipe dreams?
I won't lock it but I challenge the vox populi to come up with such. Otherwise we suggest all kinds of fantasies. Insult each other at your risk.
I will comment before turning to New Year's fun:
1. The US has bought hundreds of thousands of 9mm handguns and just ordered more.
2. Given budgetary problems in the US and Europe (who are dramatically cutting their armed forces), it is silly to think money would be spent to redo at best a secondary weapon.