It seems they've added a new debate thing: Persuade Me. To test this out, I'll post the next Death Battle match up: Lucario vs Renamon.
We'll not be including Mega Evolution or Digivolution in this discussion to keep things fair. I believe Lucario is able to win against Renamon. Who agrees, who disagrees, and who will be able to convince me that Renamon could win?
Debra AI Prediction
Post Argument Now Debate Details +
Arguments
  Considerate: 87%  
  Substantial: 38%  
  Spelling & Grammar: 95%  
  Sentiment: Neutral  
  Avg. Grade Level: 6.84  
  Sources: 0  
  Relevant (Beta): 91%  
  Learn More About Debra
Here's the Smogon page for Lucario: http://www.smogon.com/dex/xy/pokemon/lucario/ou/
  Considerate: 80%  
  Substantial: 62%  
  Spelling & Grammar: 92%  
  Sentiment: Neutral  
  Avg. Grade Level: 7.84  
  Sources: 1  
  Relevant (Beta): 6%  
  Learn More About Debra
  Considerate: 89%  
  Substantial: 54%  
  Spelling & Grammar: 89%  
  Sentiment: Negative  
  Avg. Grade Level: 6.86  
  Sources: 0  
  Relevant (Beta): 89%  
  Learn More About Debra