I only work in black, and sometimes very dark gray

Crayonbricks made this adorable Batman.

Comic-Con

In recent years LEGO has used Comic-Con International in San Diego as the forum to release news about geek-themes (e.g. DC and Marvel Super Heroes, Lord of the Rings, etc), and they also have some exclusives for Con attendees. This year is no exception. Two of the minifig giveaways will be Arsenal and Sam Wilson as Captain America. I have not read how they will handle the giveaways this year; this has been a contentious issue in previous years, but hopefully they've worked out the kinks. There will also be this Superman set for sale that recreates the classic Action Comics #1 cover.

Uprising

Grantmasters built this Uprising sculpture.