Meh, not so much. We don't KNOW what was in Lincoln's head. His lifelong objection to slavery would lead one to believe he would like to end it or wouldn't mind seeing it ended. Politically speaking, at the time of the elections, it would have been detrimental to say "I want to end slavery." However, after the election, it didn't take 7 Southern states to secede over expected economic doom(which includes the use of slaves). It wasn't just Lincoln, the Republican party won overwhelmingly, but the South knew something was afoot. Not being privy to "behind closed doors" discussions, I think they felt Congress/Lincoln would push to abolish slavery and continue the tariffs. That, effectively, would have destroyed Southern economy to the benefit of the North.
Do I KNOW Lincoln wanted to end slavery BEFORE taking office? No, I do not. But many believe he did. I suspect it was on his agenda. Secession gave him reason to begin the process without stating it.