Overall, repeal of the 2015 Rule is likely to lead to a lack of consistency and clarity for project proponents trying to determine if waters on their properties are subject to USACE jurisdiction.
Immediately after this repeal was published in the Federal Register several lawsuits were filed, both to challenge the repeal of the 2015 Rule and to challenge the 1986 interpretation that would come into effect on December 23, 2019. It is possible that the full repeal could be delayed by the courts, though the likelihood of that is low.