I'd really like to see a secure (-enough) video chat app which integrated well with mattermost & murmur/mumble (which I wish integrated really well with one another). It'd be even better were it end-to-end encrypted of course, and while I'd (of course) prefer excellent security, I'd be willing to trade a little of that for good-enough-to-resist-public-WiFi-threats.

Something like self-hosted Signal for video.