(Note: I am just a fairly ignorant skier, not in the ski industry.)
Skis the same width can ski very differently, and skis of different widths can ski a lot alike. It depends on the skis.
Your size will probably minimize the differences of width changes, so that I'd tend to suggest maybe considering at least a bit bigger than 100 to 108 mm, maybe the 108+ to 115 range also, as was suggested - if the particular ski is versatile enough. 108 will get you a great variable conditions ski (e.g., Cochise already mentioned, or last year's Line Supernatural 108), but then the Enforcer 93 is a very good variable ski already, probably. (I know from experience the Enforcer 100 is, but not sure given your size, with the 93.)
It might make sense, then, to consider a ski with greater contrast, less overlap, with your current ski, that will still handle a good variety of conditions, including soft groomers, soft trees, rough variable and powder? Or at least handle very differently in powder, given your size. (Both the 108s mentioned are not so much for float in powder, at any size.)
And then to demo, if at all possible?
That said, besides those two 108s, and two others mentioned (the Volkl Two and the 191 Enforcer 110), the other new 191 Enforcer, the Pro 115, might be a possibility to try out, especially since you like the 93, and you are so big. (The danger for you is would you over-power most skis?)
Others:
Blizzard Rustler 11 (116 @192). New, but both playful and good in all soft snow conditions, I would bet.
The 191 Volkl V Werks Katana 112. Your size is the big question mark, again. This ski might be too short for you, except you want to do more tree skiing off piste, so it is promising. In soft snow, this would (probably, for you) do everything well, plus be great in variable/slush/powder/soft groomers also. (One of the few skis I've found that truly excels in all four.) In my experience, this ski is forgiving, but it would also make you better. And it turns in powder trees on a dime. It's unchanged from last year, so last year's 191 is on sale now. (SkiEssentials, Powder7, Backcountry, etc.)
Skis the same width can ski very differently, and skis of different widths can ski a lot alike. It depends on the skis.
Your size will probably minimize the differences of width changes, so that I'd tend to suggest maybe considering at least a bit bigger than 100 to 108 mm, maybe the 108+ to 115 range also, as was suggested - if the particular ski is versatile enough. 108 will get you a great variable conditions ski (e.g., Cochise already mentioned, or last year's Line Supernatural 108), but then the Enforcer 93 is a very good variable ski already, probably. (I know from experience the Enforcer 100 is, but not sure given your size, with the 93.)
It might make sense, then, to consider a ski with greater contrast, less overlap, with your current ski, that will still handle a good variety of conditions, including soft groomers, soft trees, rough variable and powder? Or at least handle very differently in powder, given your size. (Both the 108s mentioned are not so much for float in powder, at any size.)
And then to demo, if at all possible?
That said, besides those two 108s, and two others mentioned (the Volkl Two and the 191 Enforcer 110), the other new 191 Enforcer, the Pro 115, might be a possibility to try out, especially since you like the 93, and you are so big. (The danger for you is would you over-power most skis?)
Others:
Blizzard Rustler 11 (116 @192). New, but both playful and good in all soft snow conditions, I would bet.
The 191 Volkl V Werks Katana 112. Your size is the big question mark, again. This ski might be too short for you, except you want to do more tree skiing off piste, so it is promising. In soft snow, this would (probably, for you) do everything well, plus be great in variable/slush/powder/soft groomers also. (One of the few skis I've found that truly excels in all four.) In my experience, this ski is forgiving, but it would also make you better. And it turns in powder trees on a dime. It's unchanged from last year, so last year's 191 is on sale now. (SkiEssentials, Powder7, Backcountry, etc.)