It's early but to be entirely honest there are people raising money for their campaigns who have less than 2% of a chance. 24 currently competing and I agree the top 8 might have a good chance. The bottom 16 are waisting time and money and they're diluting the punch.
13 through 24 should thank their staffs and volunteers while wrapping up that which was not meant to be. At leasr not yet.
After another 30 or 60 days numbers 5 through 12 should face reality as well. Debates with the 4 candidates who've remained most relevant would be far better than 20 over 2 nights.