what do you think the rating on godzilla will be

It will be a hard PG-13 because of death and destruction. But they want more people watching the movie.

While a R rated Godzilla movie would be interesting, i would have to say PG-13. Previous ones have shown people getting crushed, or getting directly blasted by the atomic breath, as shown in Godzilla 2000 and GMK. Monsters have been shown getting torn apart sometimes, like in Godzilla VS Spacegodzilla, Spacegodzilla got chunks blown off of him by the Spiral Ray. But that doesn't elavate a rating.

I think it will be between PG13 and R, I would Like to see people dead, buildings falling apart over people, Godzilla crushing people with his foot, children being burned alive and screaming of pain because of radiation, and that kind of things.

The film will, as most Godzilla films are, be PG-13 due to mild violence and language. Fantasy violence manages to avoid the R rating quite often such as Pacific Rim despite the amount of Kaiju blood and gore that we saw (for those who watched it of course). This new film will likely not deviate from the standard PG-13 rating, but if it does venture into the R rated category then all the better so long as they don't spam the word "fuck" every two sentences like some R rated movies have done in the past.

If the film is ever going to go into R territory, it'll probably appear as an "uncut" special edition DVD sometime in the future. Edwards may have grittier scenes, or he may not. Personally, I doubt it, but would be pleasantly surprised if that were the case.