Is 'Game of Thrones' setting up Sansa and Tyrion for the Iron Throne?

"More than anything, Tyrion and Sansa deserve the Iron Throne because each knows how vulnerable people suffer most at the hands of a cruel, autocratic monarchy.
As Tyrion said back in Season 1, he's always had a soft spot for "cripples, bastards, and broken things." And Sansa became an equally fierce advocate for those who get crushed and forgotten beneath the wheel of power like her Northerners — as evidenced by her transformational relationships with both Theon and her "bastard brother" Jon.
Out of anyone on the show, both Tyrion and Sansa have made the fiercest arguments for tearing down the wheel. "
read the analysis by jess joho
Is 'Game of Thrones' setting up Sansa and Tyrion for the Iron Throne?