How?
Just to clarify, Comstar had Royals, we know cause of the few examples that were downgraded before they were sent to House Kurita.
Royals are around, after all if each House can't produce them in great numbers in 3039-3060, they still knew them. Most were downgraded before SW3, but there's still a lot out there.
Which means, any SLDF-in-Exile could still be floating around. ( Snubbies and such, even not massed produced, they haven't been extinct. )
Which begs the question, if it's the best of IS can offer to stop the Clans, IE Clanbusters, why weren't Royals used in defense?
Which further begs another question for a different thread, wouldn't Jaime Wolf have had the few remaining SLDF-in-Exile mechs and Royals in 3001?
But mostly, did CGL forget the Royals a second time or are there plans for them elsewhere?
TT