They might do that, but it won't be for another year or more.
Something tells me it's not high on the priority list given they've had the 3 inch .38 LCRx out for 2 years and have added NOTHING to that product line.
And it's not like it would be difficult to put together. The frame needs be no different than the .38 LCRx's, the cylinders you just take from the currently made .22 LCR, and you just make the barrel insert and shroud longer.
It's really easy for them to do and they are losing my money not doing it.