Several Disney blogs have reported that the new Tequila bar being built at the Mexican Pavilion at EPCOT is to be called La Cava del Tequila
It seems like its first major outing will be during the EPCOT food and wine festival as can be seen from the promotional release:-
Mexico Tequila Tastings
Come taste authentic Mexican tequila and learn about the history and traditions around its production from a true Tequila Master. This new location offers appetizer samplings of ceviche and tostada as guests embark on their tequila flight.
La Cava del Tequila, Mexico Pavilion
Fridays, Saturdays and Sundays at 3:00 p.m.
Price: $35.00 per person, plus tax. Gratuity included. Theme park admission is required.