Sadly, a la carte is unlikely and would come with a number of downsides.
Right now ESPN is the most in-demand channel bundled into your cable package. In an a la carte situation, you're looking at paying around $20/month for it alone, likely more. Why? Because without subscription packages there would be less people overall that subscribe to it. They'd need to charge what they receive now or more to make up for the loss in the number of subscribers.
Does that sound like a lot? It gets worse.
Without bundling, the majority of channels would go out of business. I hope you only like the 10 or so most popular channels because there simply wouldn't be enough people interested in subscribing to the others to keep them in business.
With bundles even the lesser popular channels get a cut and can continue to exist. I'm sure you'll say screw them if they can't survive but the truth is that while they may not be your thing, they are channels many people enjoy. It's like if Apple had gone out of business in the '90s because they were the less popular choice, even if many did like them.
Adding to the likelihood that most channels would fail, even the less popular channels would have to charge a good amount. Right now they get a couple cents or a couple dollars from your monthly bundle price. If you unbundle they now have to charge not $1/month they receive from the current bundle but $5/month because so many less folks would subscribe to their channel. Again, you may say screw that but we're talking about real people losing their jobs at countless TV channels and content creators across the country/world.
You may still think a la carte is the way to go. Sadly it only means less choice for us all. Much of what's produced by the channels which would go out of business is content that ends up on Netflix where people re-discover it. With Netflix already cutting back drastically in non-original content, it would mean even less for you to watch there. Netflix is already investing mostly in their own content. While much of it is great, if you don't like it, soon you'll have no choice. With Netflix investing in their own content and less in that from others, plus many of the smaller content producers going out of business, less and less choice is already around the corner.