Intel's Arc Limited Edition graphics card is on exhibit at the IEM event in Dallas. It wasn't installed or operating in a system, thus it's unclear if it was a working example or early design.
Intel demos the card standing up in an acrylic box on a spinning base. @theBryceIsRt's three tweets disclose nothing new besides the power connectors. Intel placed one 8-pin and one 6-pin power connector on the card in question. Intel won't adopt the 12-pin power connector most next-generation high-end graphics cards will use. According to his Twitter bio, @theBryceIsRt is an Intel employee and Intel Arc community champion.
Intel hasn't said when Arc-based graphics cards would be available.
Photos of Intel ARC Graphics card: Intel Shows Arc Graphics Card at Intel Extreme Masters