First of all, let's review Pluto's trek through the signs in recent history.
Pluto was in Scorpio from 1983 through 1995. This was a period of years that brought our attention to sex, death, and crime. While the AIDS virus had been lurking under the radar before this, it wasn't until Pluto entered Scorpio that it came to the surface of our attention.
Pluto is like that. Problems relating to the basic meaning of the sign seem to go unnoticed until Pluto brings them to the light of day. We all know that homosexuality and bisexuality are nothing new under the sun, but during this time, they became a socio-political issue.
This was also the time when violent video games, street gangs, music, the sexual abuse of children, battered women also dominated the news as "social problems". We still worry about these problems, as we lost our blissful assumptions when Pluto lifted up the rock, and exposed our lack of awareness.
Pluto entered Sagittarius in 1995, and stayed there until this last fall of 2007. What came to the surface in these years? Think of 9th house matters... This was the period when we began to realize that not all was excellent about our educational institutions, calls for reforms of these, an explosion of mass media outlets, cable channels, public awareness and use of the internet, political bias by the main stream media, and most of all, religious beliefs.
We humans tend to confuse our personal truths for absolute truth in all forms of religion, which is under the "Sagittarius Search For Truth/Information/Justice etc." Some in our culture, unable to achieve the implementation of their social and community goals through legislation, decided to turn to the courts. Other decried using the courts to enforce a social agenda desired by minority special interest groups.
Fundamentalism seemed to spread like a virus throughout all kinds of special interest groups. From a demand via the court system from secular "believers" to stomp out all displays of Christian beliefs and symbols, Hollywood stars flocking to Scientology, cable channels dedicated to specific faiths, a split in mainstream churches about the ordination of homosexuals, to the beginning of CDs, podcasting, and other forms of media explaining, exhorting, and proclaiming religious truths, we became aware of the conflicts between all these faiths.
But, the biggest of all was the rise of fundamental Islam, and the attack on the secular/Christian/Jewish west by fanatic believers in the justice of Jihad.
Wars over religion, ideology, culture, groups that think differently, celebrity journalism, the internet, sports scandals... all these are symbolized by Pluto in Sagittarius.
Now Pluto is entering Capricorn, a practical, material world sign, one that related to karma, time, and old age. Saturn rules Capricorn, which is the 10th house sign. Also considered under the influence of Saturn, Capricorn, and the 10th house are structures, systems, status, administrators, bureaucrats, leaders, big corporations, and governments.
Control is a big Capricorn word. Rather than speculate on the forecast for Pluto's transit through Capricorn, I would encourage you all to google "Pluto in Capricorn", read all you can from the various astrologers on-line, and do your own forecasting!
Here is one link to get you started! Not that I agree with any or all these forecasts, but they do help to get a feel for how astrologers speculate about this transit.
http://www.world-of-wisdom.com/04_articles/2005/06_pluto.htm
Next, the coming Saturn/Pluto square...