They are already limiting the PC interface due to PS3 limitations.
1. See the dev post on why items are shown only with icons and no option with even a text-based list.
2. See the dev response on why our bag has to be displayed in tabs instead of everything in one go.
However it is perhaps not strictly accurate to say that PS3 is limiting PC. For #1 above, it is indeed PS3 limitations. For #2 above, though, it is because they want the game to run fine on 1280x720, hence everything must fit in that small space, even if you have 2550x1440. They simply don't care.
They do not allow better hardware to provide better functionality. Everyone is allowed only that which the worst spec can handle.