The Library has yet to respond to the request, but it may be more open to the idea than you think. The DMCA already includes clauses that allow reverse engineering in the name of preservation, and archivists have already argued that game creators should provide their content in easily readable formats. It's easy to see the Library allowing homebrew servers for the sake of the historical record, even if game studios aren't always fond of people messing with their code. You'll know who to thank if you can still sign on to Destiny a decade or two from now.
[Image credit: Supastarrio, YouTube]