WTSL still listed as T1 halt through Nasdaq Should mean more news is coming
That's exactly what it does mean: the Nasdaq has halted trading in the stock due to the fact that "material" news will be released soon.
When the news has been released, then the trading halt code will change to T.2, which means that the stock is still halted but that the news has been released.
Eventually, the stock will be given a code of T.3, which means "Halt - Resumption Times".