Have the change reviewed in light of the owner-specific evidence and the broader L requirements. An earlier letter should not continue to describe a position the company no longer intends to provide.
Update the plan when the business facts change
Identify whether another real assignment exists and how the qualifying organization will continue operating. Do not assume a substitute plan is automatically sufficient or that a changed commercial intention has no immigration implications. When the foreign assignment changes, the record that matters is the one showing when the company decided, not when someone noticed.
Ask for the decision to be minuted with its date and reason, because a plan that evolved for ordinary commercial reasons is a different matter from a plan that was never real. What goes wrong is drift: the United States project extends, the foreign function is quietly absorbed by someone else, and the file still contains a letter describing a return position that no longer exists. Review the assignment description at every point where the underlying facts move, whether a change of role, a change in the foreign entity's operations or a change in ownership, and update it before any further filing relies on it.
Where no genuine alternative assignment exists, that is information to act on rather than to paper over, and the realistic options should be assessed against the seven-year maximum applicable to L-1A and whatever remains of it.