According to Tom Pelissero of the NFL Network, the Titans-Steelers and Texans-Vikings games will be play as scheduled. "However, the NFL is evaluating the situation and will adjust if needed as more information is gathered," Pelissero tweeted. "Teams are still working through contact tracing data, etc."
Cautious optimism is the best phrase for this. That said, it is important to make contingency plans with your fantasy roster in the event the two games are pushed back or cancelled.