"Decade in the future" refers to a period of ten years that is yet to come. It suggests looking ahead to a point in time that is ten years away from the present. Full definition
In recent years, analysts have increasingly assumed, in their models, that deficits resulting from tax cuts are ultimately paid for by tax increases or spending cuts several decades in the future. (vox.com)
There are a few «hacks» to quickly find high quality businesses that are likely to be around for decades in the future rather than years. (thecollegeinvestor.com)
But it would have taken place decades in the future. (wri.org)