The release is scheduled for 0600 GMT
The expectation is for the German economy to contract by 0.1% q/q after the brief reprieve seen in Q1 this year. The real worry for Germany is that the current economic slump may be more profound than anticipated.
I reckon any print of -0.3% q/q or worse (though unlikely) will set off alarm bells and give the euro a nudge lower as it could be a prelude to a technical recession.
Meanwhile, a better print - one avoiding a contraction - may let euro bulls breathe easier and potentially see the euro inch a tiny bit higher (I reckon no more than 10-15 pips).
Though, with global economic conditions continuing down this path, it is but a matter of time before Germany comes face-to-face with the reality of a technical recession. That sentiment should limit any optimism or upside from the report here.