CNET says Trump will deliver her speech on Wednesday, January 8th at 3PM, though neither CTA nor the White House has not yet announced this.
Trump has been involved with a few tech initiatives as part of the Trump administration. As CNET points out, she joined Google CEO Sundar Pichai at a tech jobs announcement in October and accompanied President Trump on a visit to an Apple production facility in November.
Still, the fact that she will deliver a speech at CES is a bit unexpected, to say the least. If the rumor is true, you can expect CES to be especially insane on the 8th.
Engadget has reached out to CTA for comment.