No concrete company forecasts as far as I know, but from memory there is an ASX rule that (ASX-) listed companies need to make announcements if they know that their performance will be more than 10 (or 15?)% off the publicly available analyst consensus.
This might be as well the reason that they gave a reason for the halt on ASX, but not on NZX (not a NZX rule).
Analyst consensus for CBL FY17 is according to 4traders:
http://www.4-traders.com/CBL-CORPORA...78/financials/
Revenue 358m (up from 264m in 2016) and NPAT 42m (up from 29.7m in 2016).
Maybe somebody just recently discovered on board level this ASX listing requirement? Otherwise I can't really imagine that they would need more than one month after the end of the financial year to find whether revenue / earnings numbers are quite different to the analyst forecasts ...
Ah well, I guess tomorrow we will know more ...