Ken Wilber's books are often put under New Age because they deal with consciousness, but they are also put under the general category of philosophy-religion. Much Eastern philosophical esoterica marketed in new translations and anthologies is from traditions over 2500 years old. Many other practices considered New Age, such as crystal work, divination, and geomancy, also have roots in ancient traditions - some predating literate civilizations. A lot on how to get high on technology and technique. Eastern mysticism blended with modern Western technological power leads to outer space and new planets to colonize.
Higher evolution goes with high tech, and Teilhardian dreams are there.
Wilber's theory of evolution of consciousness is widely available as well. Used in certain ways, his hierarchy of development of consciousness has upper reaches that seem to leave the Earth and body behind. His theory can be used to support New Age disembodied consciousness and engineered control of evolution. This might be why he sees the Deep Ecology Movement and nature spirituality as regressive, since they eschew high tech. Gus diZerega criticizes Wilber's inaccurate account of Deep Ecology and nature spirituality in this issue.