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We construct a mass model of the cluster MACS J1149.6+2223 to study theexpected properties of multiple images of SN Refsdal, the first example of agravitationally lensed supernova with resolved multiple images recentlyreported by Kelly et al. We find that the best-fit model predicts six supernovaimages in total, i.e., two extra images in addition to the observed fourEinstein cross supernova images S1--S4. One extra image is predicted to haveappeared about 17 years ago, whereas the other extra image is predicted toappear in about one year from the appearance of S1--S4, which is a testableprediction with near future observations. The predicted magnification factorsof individual supernova images range from $\sim 18$ for the brightest image to$\sim 4$ for the faint extra images. Confronting these predictions with futureobservations should provide an unprecedented opportunity to improve ourunderstanding of cluster mass distributions.

Predicted properties of multiple images of the strongly lensed supernova SN Refsdal