Not at E3... but how about Quakecon?
So we've been told that Starfield won't be at E3, but if you want to keep the dream alive for 2019 information then pin all your hopes on Quakecon! It happens 25-28th July.
They had a Fallout 76 panel there last year so Bethesda Game Studios could maybe go back with something else! It's also where they did the big gameplay presentation for DOOM Eternal last year, after the short reveal teaser at E3.
I actually don't expect us to see anything this year beyond maybe another short 60 second teaser but for those that do, Quakecon hasn;t been ruled out like E3 has.