As lockdowns ease and students return to campuses across Europe, it is becoming increasingly clear that the higher education landscape has shifted dramatically. HEIs provide flexible blends of synchronous, asynchronous, and face-to-face (f2f) instruction, enabling tertiary-level teachers and students to switch seamlessly between delivery options. It is crucial in the actual post-emergency situation to support teachers who need the training to design optimal combinations of different delivery modes that utilize the unique strengths and overcome the potential constraints of each method. Among the lessons learned from the emergency, the Universal Learning Design (UDL) principles are among the most important. The Erasmus+ project Scaffolding Online University Learning: Support Systems (SOULSS) envisages supporting teachers in implementing UDL in their teaching, considering new technologies and approaches.