quin -- can represent future time. Quin tihuāllāz = You are to come later.
Horacio Carochi, S.J., Grammar of the Mexican Language with an Explanation of its Adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 355.
quin = just recently, later, etc.
Horacio Carochi, S.J., Grammar of the Mexican language with an explanation of its adverbs (1645), translated and edited with commentary by James Lockhart, UCLA Latin American Studies Volume 89 (Stanford: Stanford University Press, UCLA Latin American Center Publications, 2001), 511, and see 106-07, 352-55, 368-71, 380-81, and 390-91.