The short GIF shows a mysterious person in a stylish hat and glasses. According to the dataminers, this is none other than Flores, the new Rainbow Six Siege operative.
In Crimson Heist, operatives will have a gadget called the RCE-Ratero. This is a radio-controlled drone that can explode and thereby cause a lot of inconvenience to enemies.
A full announcement of the operation and confirmation of the new operative along with other innovations should take place soon. This will most likely happen during the Six Invitational finals.