Yes sure, either way BB will need to generate up to preview.
You could also have a button (yes another button in BB)
"Open Current Song with Style in new BB instance"
so it would open your current (and maybe a browse button) song.sgu as song_temp001_Style_XXXXX.sgu change the style inside the sgu then open in a new BB instance in DAW Mode size (small, always on top) with the mixer open.
Listen, Close (or keep that BB instance with that "Maybe" Style, Open), Try the next, you may then have a few instances open with different styles to your song, maybe move this instrument in this Style to the other Style, maybe those Drums will sound better in the other Style ????