Looking at the agenda for the March Gaming Control Board meeting, I see that Nevada Restaurant Services has applied for a gaming license at the former locations of both the Opera House and My Casino. Both of these closed last year. Apparently My Casino will be Boulder Lodge Casino and the Opera House will be a Dotty's.
I sometimes find items of interest on Nevada Gaming's website. Here's a link to their March agenda:
http://gaming.nv.gov/modules/showdocument.aspx?documentid=10892