Dagmar
Defender of the Bunnies of Skyrim
Technically the Moot can pick any Jarl to be the next High sovereign of Skyrim. As a practical matter they would choose Elisif because if the Imperials win the war, aside from having an heir of legitimacy from being the widow of the last High King, she has the Jagged Crown and the support of the Jarls that are allied with the Imperial Legion which, by the end of the war, is pretty much every Jarl. It's basically the counterpart to Ulfric being a shoe in if the Stormcloaks win the war.Nope if the imperials win the war against the Stormcloak Elisif would then have the status of being the high queen of skyrim, since shes well qualified for the position. Also she has imperial supporting Jarls to support her for the Queen status.