Newoiz has released a brief teaser announcing DJMax Respect V for a PC release via Steam. There is pretty much no information on what makes this version different from the original PS4 release from 2017. It can be reasonably assumed that it will be an expanded version of DJMax Respect with all the content from the original release along with some upgrades and new songs to play. You can watch the teaser below:
DJMax Respect V has no announced release date at the time of this writing.
Source: DJMAX Official (Youtube)