Under the price matter, TN justified saying that it include even later DLC (that so should be free) as eventual additional modes, so wait for saying it, maybe the price will get more reasons with the time.
Btw for me LR, even if adding few things, it's an expansion version of a fighting game in line with the recent trends. If something I believe that was 5U to offer too much contents for being a simple remake, thing justified from the fact that actually it should be seen as the DoA5 as thought in the beginning.