Remember what everyone has said about 2020 being a blockbuster year for Southern Nevada? Derek Stevens just piled on. Here comes Circa. That’s not Circus. Or Circa Circa. Just Circa. His Thursday announcement that his new 777-room (a great Vegas number!) hotel will open its doors in December 2020 was more good news for Las Vegas and especially for downtown, which hasn’t seen a new property built from the ground up in decades. Pardon that vagueness. Some local bloggers thought