We are currently be witnessing an important shift in architectural theory, in which the category of ‘future’ increasingly replaces the dominant role of ‘history’. While in recent decades history has guaranteed a solid understanding of temporality and development in architecture, current ecological upheavals (climate change, energy transition, etc.) are challenging this status. As the historian Dipesh Chakrabarty has argued, the future (in the 21st century) eludes ‘the grasp of historical sensibility’ due to the unprecedented character of the climate crisis. In the field of tension between ‘experience and expectation’ (Reinhart Koselleck), architecture is increasingly falling under the spell of what is to come. New, non-primarily historical methods and concepts of futuring are therefore required. In my contribution, I will address emerging forms of knowledge about the future in the context of the current ecological challenges and pose the question of the future (in) architectural theory.