U should ask Jean-Luc if he is planning to change min fee in the nearest future.
The answer is I don't know yet. It is not just changing a hardcoded constant. We have the logic of multiplying amounts by 100 all over the code (yet not absolutely everywhere), this needs to be cleaned up and all the amounts need to be handled in a consistent way, i.e. all in NXT-cents, and only display them as fractional in the client, and parse user input as fractional in the client. I need to go through the code and fix that, and then track down and fix the bugs resulting from my fixes.
During this process of implementing fractional NXT in the code, would it be possible to add support of higher resolution than .01 NXT? I realize this could be very difficult as it is stored as integer * 100, but I see many applications that could use higher precision. For example a lot of altcoins are worth a small fraction of NXT and as it is now, we need to create bundles of these so that .01 NXT wont create giant price swings.