You can use open -R
to reveal the bundle directory in Finder:
open -R .
It selects the bundle directory but doesn't show the package contents. This shows the package contents in list view and icon view but not in column view:
osascript -e 'tell application "Finder"' -e reopen -e 'set target of Finder window 1 to POSIX file (system attribute "PWD")' -e activate -e end