I would welcome the return of Royal Road though I'm unsure about using other cards to trigger the buff effects. In a way the original RR made all the cards useful, but you'd almost never actually play something like Bole for the defense so the card itself felt kind of meaningless. On the other hand that wouldn't be as much as issue now since you'd know when Bole or any specific card is coming up. In another thread I proposed replacing Minor Arcana with RR effects which would be another option. I don't find MA very interesting at this point.