What manufacturer(s) make a DCC decoder with sound for the Bachmann "F" scale (1:20.3) K27 that plugs directly into the PC board connector

My question is for to whom it may concern at Bachmann;   Any plans to produce Fn3 passanger cars and more modern Fn3 steam locos?

I'm new to this site but thought I would throw my 2 cents into this mess.  The difference in scale is "Fine Scale" F is and G is not for equipment operating on 45mm track. And there are some out there who have taken up modeling F Scale Standard Gage on 70.64mm track.  Also, the Spectrum line is not the only 1:20.3 models from Bachmann, some of the "Big Haulers" are also 1:20.3 with less detail, and as far as autos and trucks I have found that commercially available 1:18 scale vehicles look best to scale.