  The QCD critical point is a landmark point on the QCD phase diagram, with
potential connections to a plethora of deep questions on the properties of
thermal nuclear matter. Future heavy-ion collision experiments, in particular,
the second phase of beam energy scan (BES-II), will explore the QCD phase
diagram with an unprecedented precision and would potentially discover the QCD
critical point. In this short review, I discuss and summarize recent new ideas,
such as `rapidity scan', and new theoretical developments, in particular in the
qualitative characterization and quantitative descriptions of the critical
fluctuations in the expanding fireball. Those new ideas and developments
together would enhance the prospect of locating the QCD critical point.
