Will they label China as a currency manipulator this time around?
The short answer will be no. However, I would expect the report to express the same concerns as it did in October last year i.e. complaining about lack of transparency and weakness in the yuan. The full report at the time can be found here.
Instead, we should see China remaining on the currency monitoring list which includes countries such as Germany, India, Japan, South Korea, and Switzerland. With trade talks still ongoing and reaching a critical phase now, US authorities surely can't risk any surprises that could potentially derail recent developments/progress.
P.S. Most calendars have this pinned for a late Friday release but it's really any time between now and the end of the week really.