Whether any emulator would use IPF or not is not something that I could or want to influence.
However, there already are IPF images for PC; although all of them are for dual or tri-format disks at the moment, where a single disk contains data readable say on Amiga, PC and ST.
These fully work from the very same IPF file on all platforms.
Similarly, if we had heavily protected PC games added as IPF, they would work as well.
At least, you could rewrite them and use on an old PC rig for sure, or just get an emulator that could use them eventually.