The search for life on planets orbiting other stars will dominate astronomy for the remainder of this century (unless an incredible space phenomenon that was utterly unimagined pops up).
By the beginning of the next century scientists will be planning on how to travel to other worlds to see alien life forms up close. This will at last provide incontrovertible evidence for astrobiology on a muticellular level.
By 2110 we will have mapped the surfaces of the nearest exoplanets to see oceans, storms, continents, and volcanoes. There will be photometric and spectroscopic evidence for forests and savannahs. We will have also catalog numerous satellite companions.
Once convinced a planet is inhabited (which may not satisfy all scientific skeptics), there will be endless wonder and speculation about the type of creatures that are living there. Imagine beholding the interworking of an entire alien biosphere.
But it would take a telescope with the effective diameter of the sun to actually take photographs of something the size of an elephant strolling on an exoplanet only 4.3 light-years away. (In fact the sun could be used as a gravitational lens to amplify the image of a planet, but that would not come close to providing the needed magnification.)