Canuckplay has included League Templates & a Roster Maker.
After the new patch has been downloaded, there are two new folders in the game installation folder. (usually "C:\Program Files (x86)\Steam\steamapps\common\Canadian Football 2017"):
\TeamTemplates
\RosterMaker\RosterMaker\bin\Debug\RosterMaker.exe
The templates are for 10, 16 and 32 team leagues.
The RosterMaker even includes the C# source code should you wish to create your own roster editing utility using Visual Studio 2017.
Details can be found at http://canuckplay.blogspot.ca/2017/10/league-templates-roster-maker.html
Looking forward to what all you creative folks can come up with!