That's a good idea. I often wonder if the top brass, R&D, or marketing guys ever surf our forums. They really should.
If they check here, I'll suggest three options in .32 that might actually sell. In case they don't, I'll pass it on directly.
1. A six-shot LCR in .32 H&R Magnum. After all, Ruger already makes higher capacity LCRs in the weaker .22 LR and .22 WMR. The .32 H&R keeps the capacity advantage and actually rivals the .38 special in terms of power, all with lower recoil. (Smith and Wesson did this on a J-Frame and even used with wear, they are still going for $500-$600 in current auctions.)
2. A 4" SP101 in .327 Federal Magnum. The initial offering was a little short for this round in my opinion. This round gains nicely on an extra inch and should handle better. Perhaps it was the .327 being marketed heavily as a self-defense round that helped manufacturers select barrel lengths but such marketing also pigeon-holed an impressive new round that still hasn't reached its potential.
3. A 6" GP100 in .327 Federal Magnum. Following from number 2 above, the hefty 7-shot GP100 currently produced in .327 Federal Magnum occupies interesting territory. It's pretty heavy for concealed carry. So is it duty carry? At that size and weight, you can get 7 .357s in a 686+. We need something to make this one special. Give this gun a home. Put it in a 6" barrel and let it shine.