Are following features planned in future?

I don't know about PS1 but reselling ROMs with bundled emulator, in this case RPCS3, would pretty much violate Sony's Software License Agreement for PS3 games.
https://www.playstation.com/en-us/legal/...relicense/

I don't see how this could end up fine for publishers who attempt that.

Of course, you can legally backup games you own (subject to country of living) and use them on emulators due to legal precedents, but here you'd be directly selling the games so it isn't quite the same thing.
It may be fine in the end of the day, and I'm not a lawyer, so you should probably ask one for detailed answers on this.