While I think it would have been an interesting idea to play as Talana, not a generic prince guy who will vanish from continuity by the time of Divinity 2, I think it might be a little too much work and a little too much cost to record alternate voice actors for all the different possibilities.

This game has been described as an experiment in a choice and consequence system where there are hundreds of combinations of endings. The recent video showed an elf princess who you ditch in favour of a dwarf princess, plus there's also an undead princess and probably more.