In episode 5 of Loki series when we see the void we see many things dumped there like
USS Eldridge ship, a helicarrier, a sphinx along with an Avengers tower with QENG written on it.
What does this signify?
It's possible that this is a nod to the main (Earth-616) Marvel (comics) universe on which the Marvel Cinematic Universe (Earth-199999) is based.
In the Earth-616 universe Qeng Enterprises, run by the villain "Mr. Gryphon," purchased what had previously been the Avengers Tower, possibly to further his plot to destroy the Avengers.
There is already speculation that this means that Kang the Conqueror will soon show up as a new villain. (Mr. Gryphon and Kang are aspects or versions of the same being, but stranded in different times or something. It's complicated.)