Make sure the options for the PLA are set to include everything - included loaded libraries - unless you are archiving those separately.
I am not sure about the merits for the option of breaking hotlinks and xrefs - I assume if you are using those, you will archive those as well.
So it should be just a matter of re-establishing the links when you later open the PLA if you don't break the hotlinks (file paths might change).
Of course if you have the PLA, you can technically create the IFC, PDF plans, DWG/DXF files any time in the future.
But if you think you will need them, there is probably no harm (apart from storage space) in saving those out as well to save you having to re-open the PLA.
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