I'm not sure I am entirely understanding you, but if you want to open a Terminal window, and have it cd to a specific directory you can use the Execute an AppleScript action with this AppleScript (adjust the path as desired).
tell application "Terminal"
do script "cd /"
end tell
The issue I want to get around is losing the current working directory when a bash script closes. I can do this manually using source script.sh or adding an open , at the end of the script abd then opening a terminal session from the selelcted folder in finder. So I could pass a directory via keyboardmaestro to open a terminal session at that path. Cool. Thanks.