I reached out to a WWE spokesperson in regards to Smackdown moving to Thursday nights on SyFy. They confirmed a move has been "contemplated," but that no decision has been made. As to how the production truck got updated with "Thursdays at 8/7c on SyFy," the spokesperson, speaking on behalf of the company, said the person that painted it was "overzealous."
Below is the official statement in its entirety:
A move has been contemplated, but no decision has been made. Someone was overzealous in updating our production trucks. The trucks are being fixed to reflect the current and accurate information of Fridays at 8pm.
We reported late Tuesday night here on WrestlingNewsWorld.com a move was possible with a photo of the new WWE production truck design.