These new carriers that are trying to copy original LCC's mainly in the U.S. like WN are more and more failing at their attempt.
For one, their hiring process is nothing similar to WN or Jetblue which is based on 3 interviews by their qualified personnel. Interjet for example is spending, on written, phsycological exams making the process lenghty and costly never eliminating much of the beurocratic process that has always acompanied the hiring process. Second they are hiring retired pilots, that are probably going to leave soon costing the company more.
These are just some of the many things that seperate real LCC's from these wanabee's. These are more like LPC's (Low Pay Carriers). For example LCC's like WN have the highest 737 pilot's in the world, able to offer their employees a descent living. These companies that are staring up are going to lower the bar for the kind of airplane they are going to fly. Atop of that I just dont think they will have that LCC culture that will make them succesfull, and these points especially their hiring process is to me the first indication that they don't have a clue as to what they are doing.