IGTV has been a huge focus for Instagram since it's launch but it has not been as popular as Instagram Stories. The app is looking to change that. It is now in the testing stage of launching the new option to monetize IGTV videos.
According to the beta version of this feature,
"You can earn money by running short ads on your IGTV videos. When you monetize on IGTV, you agree to follow the Partner Program Monetization Policies."
There is no confirmed information about what the split will be for creators in revenue but either way, this will be a large opportunity for brands and influencers to jump on because it is not as saturated as other platforms like stories and YouTube.