Hello everybody, this summer there is a chance that I will get a grant to shoot a documentary on the state of homelessness in the USA and I was wondering if you could give some input into what camera I should pursue.

Currently I own a Panasonic G7, it is a very good camera for its price range but I am not sure if it would be the best choice to shoot a full docu on as it is a tad limited, currently, I am considering waiting for the GH5 to release in order to upgrade to that however I am still worried about the low light capabilities of the GH5 as a lot of noise is a big pet peeve of mine when it comes to a viewing experience though I cant say for sure what the GH5 will be like on this front. I am sure that I want to shoot in 4k and am considering going with the Sony A7S II, what do you guys think? GH5 or A7S II?

Thank you for all the responses, will read them all and lurk.
>pic unrelated but related?