at least wait until after the movie, historically books build on movie releases, especially after the ad/short/preview is released and then they drop after the movie
*of course this is based on a lot of Sony X-men/Spider & DC releases, that were varied in quality...when Disney/MCU release something it could change the whole mindset, it may further energize the market (the way Marvel do with the easter eggs at the end)
Put it this way, I have 9.6/9.8 raws of #300 and #316, I'm getting them to CGC in 2 weeks in order to sell. It's a sellers market