Scenario A: What if upon the expulsion of the Germans from Koenigsberg, Stalin declared Kaliningrad not a part of the RSFSR, but an SSR on its own; afterward, instead of settling Kaliningrad predominantly with Russians, Stalin sends representatives of every ethnic group (Russians, Belarusians, Georgians, Kazakhs, Tajiks, Latvians, Uzbeks, Chuvash, etc.) in the Soviet Union, in approximately the proportions they existed, to settle the new SSR. This would be branded as a new utopian experiment in the glorious creation of the new Soviet man and woman.
Scenario B: Alternatively, what if Stalin died at the same time that Kaliningrad was established, Krushchev takes power, and when most of the surviving gulag prisoners from the Stalin era are freed, they are resettled in Kaliningrad?