We are already in the age of Aquarius if the signs of it are right.
The age of Pisces was when humans conquered the seas, the water. The age of Aquarius is when we conquer the air, so according to that it seems we are already beginning it.
Also see this in Ain Soph the Unknown God:
(12) Pisces, the Fishes, is the “Mutable” “Water” sign - and the last sign of the Zodiac. Its symbol represents two fishes tied together by the tails and trying to swim in opposite directions. It is the most mysterious of all the signs. It is generally considered an “unfortunate” sign; it is the sign of frustration, failure, even despair. Yet at the same time it is a sign which has, within it, the most glorious spiritual possibilities. It depends entirely on whether it is working on a high or a low plane of life. It may be the sign of “self - undoing” - of “self - destruction”; or it may be the sign of “self - surrender,” of attaining “self - awareness”; of voluntarily sacrificing one’s “self” to the salvation of one’s immortal spirit. The sign is, significantly enough, what is called a “double - bodied” sign like Gemini and Sagittarius. Gemini has its two “pillars” representing the double “mind” of man. Sagittarius is half man, half horse, representing the junction of animal and human passions. Pisces, being an Emotional sign represents conflicting emotions or desires. “The things I would not, those I do: and the things I would, those I do not.” “Who shall deliver me . . . . It is a sign that brings no satisfaction to anyone until - by Divine grace and strength - they can rise above their lower “self.” Then it tends strongly towards the spiritual. The inward purpose and aim of the sign is Love Universal. That can never be attained so long as our loving is on the plane of self - seeking. It can only be attained in self - giving.
(11) Aquarius, the Water Pourer, is the “Fixed” “Air” sign. In this sign the mental qualities are being consolidated into “Intellect.” Ideas take definite permanent shape. The mind is “made up.” It is no longer searching uncertainly for some undefined truth. It has acquired something, and now “pours out” the wealth of its knowledge for the benefit of mankind. In world affairs it denotes an age of illumination, mental progress, scientific advance. In physical matters it denotes the “Conquest of the Air.” The ideograph of the sign is a man pouring water out of an urn. In some ancient Zodiac pictures, he is pouring the water into a fish’s mouth.
“Aquarius,” as we have said, is an “Air” sign. It has to do with Mind and Intellect and the “outpouring” of knowledge and new phases of truth. It is not directly a religious sign. It brings no new great religious movement or cult, but it will do a great deal towards a new understanding of all past religions; it will unravel much that has been obscure, misunderstood, and mysterious in them. It will rediscover much old, forgotten truth, and the sources of old failures. It will deal with Religion, less as a matter of creed and dogma than as a universal unfolding and development of moral and spiritual qualities in mankind. In that way it will bring the world nearer to the essence of all religion. It may bring regrets to those whose souls are bound up with what they have loved in the past - old memories that are so unspeakably dear, and ever call to us from the deepest deeps of life. It is always so hard to fling away “Excalibur,” but the hand that brought “Excalibur” out of the deep for the use of man takes it back again only to re - temper and repolish it for other hands to wield - the hands of the new “Rex futuris.” Meanwhile, “Aquarius” has much to do with scientific developments. Since this chapter was written the newspapers have been much occupied with the new “atomic” bomb. It is certainly a striking “coincidence” that the basis of this new explosive should be a newly discovered element named “uranium”, after the planet Uranus. Uranus is the “ruling planet” of Aquarius. In this direction the Aquarius symbol is specially significant. The sign is very young yet, but already in the XXth century, we have been inundated with “wave” and “vibration’ theories - and their applications to many practical uses. The world little dreamed fifty years ago that invisible “waves” and “vibrations” could be transmitted and even directed through space for thousands of miles, picked up again at will, and transformed into sounds and pictures or printed messages; that rays of invisible light could be sent through solid, opaque objects to print photographic images for the use of the anatomist or surgeon. Then again, we have seen how the Piscean conquest of the “Water” element - is already - although the XXth century is not yet 50 years old - being swiftly followed by a similar conquest of the “Air.” Both for good and for evil, Tennyson’s vision in “Locksley Hall” has been more than realised already. What is more wonderful still: the conquest of already known fields of research and activity is already revealing the existence of hitherto unknown realms - the stratosphere, for instance - of which the possibilities are yet unguessable. All this corresponds exactly with the sign “Aquarius” as pictured in the Zodiac untold ages ago.