Yes, this has been said before.
If there is a Garlean expansion in future, it is possible a gunblade class may happen.
Default pose would be the same as squall from FFVIII for reference.
/cpose would change to this stance, similar to DRK for male characters.
http://static.tvtropes.org/pmwiki/pu...quall_8769.jpg
The limit break for gunblade would be fun to animate, if it were to be similar to Renzokuken or any other of squall leonhart's limitbreaks.
https://www.youtube.com/watch?v=0LIEf8zNH98
In the MGP reward store, could hold Squalls default.
http://cdn.instructables.com/FMM/32V...14EO.LARGE.jpg
I know the gunblades in-game would look new and unique, after all.
Keeping this short.
Have a good day.