The lineup for this perennial favorite invariably reflects the sensibilities of the curator. This year she’s Pramila Vasudevan, a 2017 Guggenheim Fellow and the founding artistic director of Aniccha Arts, whose technologically forward, socially conscious, and often site-specific work is based in classical and contemporary Indian dance forms. Whom will she select? And how will they confront, embrace, or reinvent the Walker’s McGuire Theater? Now in its 46th year, this annual event is always full of surprises, whether the choreographers are established or emerging.