The one thing underlying all those options and how they would dictate how Trotsky governs the Soviet Union is path dependency and whether the Communists try to break that or find it comfortable. Many of the USSR's leaders grew up under an autocratic system until 1917, hence having little experience with the type of democratic system Marx made a prerequisite for his socialist system. It's for that reason that Leninism, as well as Stalin's dictatorship, follows the classic patterns of Tsarist rule to the letter as an elitist doctrine that enshrined only the few who fully understand the precepts as leaders - which, strictly speaking to Marxists of the time, is actually anti-Marxist. The belief that Trotsky would govern no differently from Stalin - especially due to his lack of support within the Party - comes from this approach that the people's of the Soviet Union need a Tsar who can give a firm hand to the workings of the state. If, OTOH, he decides to break the cycle and be more like, say, Lázaro Cárdenas del Río in Mexico, then we have a different interpretation where, while tempted with path dependency, chooses an alternate path that follows the Constitution to the letter. It would still be awful as a Soviet citizen during the 1930s, but not as awful (which is still cold comfort for Ukrainians and Kazakhs).