I know we've heard of prototypes for non-armored characters but I'm not sure those will ever happen. You've got to remember that even though Star Wars is a global franchise, this is a japanese company and it aims its sales at the japanese market first and foremost (as Bandai always does), and as such it goes for what is very popular in Japan. Armored characters are their main business, be it Saint Seiya, various Super Sentai series, etc.. Now they also do Dragon Ball, Sailor Moon, Star Wars and other series in a smaller scale, but it looks like their main strategy is to go for armored character variants at this point, and even recolors (Jango Fett). I wouldn't be surprised if we get a snowtrooper or a scout trooper, or maybe clones (ugh).