Going on 5 year of barhopping, and the patterns I see:

1) Upstairs tucked-away bars are death to business (been in a couple in the city that have now flipped twice and are on their 3rd iteration, within not quite 5 years).

2) Bars used to be named by address numbers (e.g. "Lounge 503"), but are now being named after the streets they're on (e.g. the "Lauderdale Pub", if it's on Lauderdale Ave.).