LORE Question, What would happen if ...?

[Ashimar]

Dandil Darkstun has Three "Wurmslayers" equipped. Primary, Secondary, Range. Dandil is not aware of the upcoming patch that makes the Wurmslayer LORE. During a 3 month hiatus from the server for IRL reasons, the server is patched. Dandil Darkstun logs in soon thereafter. He logs in ...

What will he find?

Will he permanently lose his other 2 wurmslayers?

Can he somehow have them transferred to 2 seperate characters
with the help of a GM?

Or is it his fault for not knowing that it was going to happen and
nothing will be done about it?