While I applaud your optimism, I just can't see on what your optimism is grounded.
Aquarius is really perfect match for Saturn. Saturn represents cold and dark as opposed to warmth and light represented by the Sun. So, we have Aquarius in the middle of winter (in northern hemisphere), ruled by Saturn (when nature appears to be dead = Saturn) as opposed to Leo in the middle of summer, ruled by Sun. Aquarius is detriment of the Sun, as point 180 deg. from the middle of summer when Sun is most powerful. Similarly, Leo is detriment of the Saturn.
Your trashing of Saturn in undeserving IMO. In my view, planets don't cause things to happen, they just signify things. Planets are just like letters in a book, conveying messages to those who know how to read the language of astrology. So yes, Saturn is the great malefic because it represents things undesirable by most people (old age, death, decay etc.) but you need to have all those things represented in order to have complete language (astrology). But like all planets, Saturn represents both negative and positive things, depending on its position, dignity and astrological context. You can have a prison wall and a wall around your house. Both walls are Saturn (boundary). One is bad and keeps you locked in, the other is good and keeps you safe from thieves.
Anyone who has done extensive work in horary and event astrology (where it is relatively easy to check your results) will tell you that outer planets don't rule signs. If you try to use them as sign rulers, you will get your predictions wrong over and over again. I've mostly done horary and event astrology and rarely there was a need to include an outer planet into interpretation. But when outers are important enough to include (say, conjunct to a planet or a house cusp) they almost exclusively act as malefics, they signify bad and undesirable things. It's possible that outer planets have deep transcendental spiritual meanings but on ordinary, worldly, every day level they act as malefics.
Even if I assume, for discussion sake, that Uranus somehow rules Aquarius, I don't see what is so special about Uranus to grant such optimism. Most of modern Uranus significations are "borrowed" from Mercury and Mars. Even ages ruled by the great benefic Jupiter, like your tropical age of Sagittarius or sidereal age of Pisces, were essentially slaughterhouse and bloodbath, full of violence, war, savagery, plunder, slavery and all kinds of misery.
Finally, as strange as it sounds, things getting more technological is not a sign of (spiritual) progress. Like most things, technology itself is neither good nor bad. It has potential to be used for both. According to Hindu Yuga cycles, in the Satya Yuga (or Golden Age) people have zero technology. That's because they are so spiritually advanced, they can manipulate reality with their minds, they have no need for technology. Following this logic, Kali Yuga (or Iron/Dark Age) will be the most technological age and simultaneously the worst one.