@dd86k I'm guessing they want to get rid of all the 16-bit specific crap, like all the seriously broken memory handling.
At least for me, the code that I (very) occasionally maintain for real mode DOS requires the use of OpenWatcom. DOS is pretty easy to support, though, if you stay within the confines of what GCC will offer in its DJGPP port.
The only thing that really is missing there is the ability to access physmem with linear addresses. Seems like 32-bit Watcom C can do this, but DJGPP cannot.