In 2012, after the RNC, Romney peaked at a tie with Obama on the RCP average after being down by 3% 2 weeks before the RNC ended . Romney never exceeded Obama on RCP average by more than 1% the entire 2012 election. Trump already exceeded that by being up 1.1 as of today after being down by 4.7 2 weeks before the end of the RNC and it could go up more if and when Rasmussen comes in with their poll. It is clear that Trump's bounce is greater than Romney and all things equal Trump will most likely outperform Romney even if he ends up losing.
The way this election has been so far, I could see Trump winning a squeaker or losing in a landslide 359-179. Trump, just like the polls, has been so unpredictable that any kind of traditional methodology we use to predict elections is questionable.