Andy Burnham could not win his party's nomination. So what you're actually saying is you can't vote for Labour. Corbyn is not an aberration, he's won two Labour leadership elections in two years by stonking majorities, the membership want him and more importantly they want what he stands for, he's not going away, Corbyn's message is Labour's message.
Assuming the Tories hold it together and there's not another election in the next couple of years. Corbyn, who is 68, might hand the reigns over, if he can secure the nomination of another MP from the left of the party, the membership would almost certainly support that, that's the best you're going to get.
But Andy Burnham or another New Labour clone? Forget it, that's history.